{"id":"CVE-2026-42554","aliases":["EUVD-2026-29328","GHSA-qjv7-627w-8qjv","GO-2026-5585","SUSE-SU-2026:23216-1","SUSE-SU-2026:23227-1","openSUSE-SU-2026:21551-1"],"status":"published","title":"Fiber: XSS in AutoFormat Content Negotiation","description":"Fiber is a web framework for Go. Prior to 2.52.12 and 3.1.0, Cross-Site Scripting vulnerability in Go Fiber allows a remote attacker to inject arbitrary HTML/JavaScript by supplying Accept: text/html on any request whose handler passes attacker-influenced data to the AutoFormat() feature. The developer opts into content negotiation by calling AutoFormat(), but does not opt into raw HTML emission for a particular request; Fiber chooses that branch from attacker-controlled Accept. The html branch is the sole outlier in a method whose name (AutoFormat) and symmetrical structure actively telegraph \"safe, format-agnostic reply.\" This vulnerability is fixed in 2.52.12 and 3.1.0.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00212,"percentile":0.11653,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-05-05T20:13:23Z","modified":"2026-10-28T02:30:41Z","fixes":[{"ecosystem":"Go","package":"github.com/gofiber/fiber/v3","fixed_in":["3.2.0"],"sources":["ghsa","osv"]},{"ecosystem":"Go","package":"github.com/gofiber/fiber/v2","fixed_in":["2.52.13"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/gofiber/fiber/v3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.1.0"},{"fixed":"3.2.0"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/gofiber/fiber/v2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.52.12"},{"fixed":"2.52.13"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/gofiber/fiber/v3","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/gofiber/fiber/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.52.13"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/gofiber/fiber/v2","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.52.13"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/gofiber/fiber/v3","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.2.0"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 16.0","package":"govulncheck-vulndb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.20260727T201416-160000.1.1"}]}],"bundled":77},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","package":"govulncheck-vulndb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.20260727T201416-160000.1.1"}]}],"bundled":77},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 16.0","package":"govulncheck-vulndb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.20260727T201416-160000.1.1"}]}],"bundled":77},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","package":"govulncheck-vulndb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.20260727T201416-160000.1.1"}]}],"bundled":77},{"source":"osv","ecosystem":"openSUSE:Leap 16.0","package":"govulncheck-vulndb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.20260727T201416-160000.1.1"}]}],"bundled":77}],"products":[{"vendor":"gofiber","product":"fiber"}],"references":[{"url":"https://github.com/gofiber/fiber/security/advisories/GHSA-qjv7-627w-8qjv","tags":["x_refsource_CONFIRM","exploit","Exploit","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42554","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-qjv7-627w-8qjv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42554.json","tags":["advisory"]},{"url":"https://github.com/gofiber/fiber","tags":["package"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623216-1/","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-2303","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-23603","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-24451","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-25038","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-29181","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-30246","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-32952","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-34783","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-35204","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-35205","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-35206","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-37462","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-39883","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-40611","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-40890","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-41178","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-41506","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-41642","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-41643","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42285","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42306","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42328","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42554","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42931","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44166","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44283","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44301","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44332","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44517","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44740","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-44973","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-45022","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-45045","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-45135","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-45571","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-46384","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-46385","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-48978","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-49837","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-49838","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-50151","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-50162","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-50163","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-50274","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-52844","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-52845","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-52846","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-53624","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-54063","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-54448","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-55982","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-55984","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-55987","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-56750","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58417","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58418","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58421","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58425","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58426","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58427","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58431","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58432","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58434","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58435","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58438","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58439","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58441","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58442","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58443","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58445","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58507","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-58510","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-59766","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-6993","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-7020","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-7482","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-8276","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202623227-1/","tags":["advisory"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-42554","title":"Fiber: XSS in AutoFormat Content Negotiation","description":"Fiber is a web framework for Go. Prior to 2.52.12 and 3.1.0, Cross-Site Scripting vulnerability in Go Fiber allows a remote attacker to inject arbitrary HTML/JavaScript by supplying Accept: text/html on any request whose handler passes attacker-influenced data to the AutoFormat() feature. The developer opts into content negotiation by calling AutoFormat(), but does not opt into raw HTML emission for a particular request; Fiber chooses that branch from attacker-controlled Accept. The html branch is the sole outlier in a method whose name (AutoFormat) and symmetrical structure actively telegraph \"safe, format-agnostic reply.\" This vulnerability is fixed in 2.52.12 and 3.1.0.","status":"published","published":"2026-05-11T21:47:17.133Z","modified":"2026-05-15T18:24:38.3Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:40:23.731501Z"}],"euvd":[{"id":"EUVD-2026-29328","description":"Fiber is a web framework for Go. Prior to 2.52.12 and 3.1.0, Cross-Site Scripting vulnerability in Go Fiber allows a remote attacker to inject arbitrary HTML/JavaScript by supplying Accept: text/html on any request whose handler passes attacker-influenced data to the AutoFormat() feature. The developer opts into content negotiation by calling AutoFormat(), but does not opt into raw HTML emission for a particular request; Fiber chooses that branch from attacker-controlled Accept. The html branch is the sole outlier in a method whose name (AutoFormat) and symmetrical structure actively telegraph \"safe, format-agnostic reply.\" This vulnerability is fixed in 2.52.12 and 3.1.0.","status":"published","published":"2026-05-11T21:47:17Z","modified":"2026-05-15T18:24:38Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:04:28.290329Z"}],"ghsa":[{"id":"GHSA-qjv7-627w-8qjv","title":"Fiber vulnerable to XSS in AutoFormat Content Negotiation","description":"## Summary\n\n**Description**\n\nA Cross-Site Scripting (CWE-79) vulnerability in Go Fiber allows a remote attacker to inject arbitrary HTML/JavaScript by supplying `Accept: text/html` on any request whose handler passes attacker-influenced data to the AutoFormat() feature. This affects `github.com/gofiber/fiber/v3` (`DefaultRes.AutoFormat`) through version 3.1.0 and `github.com/gofiber/fiber/v2` (`Ctx.Format`) through version 2.52.12. \n\nThe developer opts into content negotiation by calling AutoFormat(), but does not opt into raw HTML emission for a particular request; Fiber chooses that branch from attacker-controlled Accept. Five of the six branches of the same method already escape. `JSON`, `XML`, `MsgPack`, and `CBOR` all route through encoders that neutralize markup; the txt branch emits `text/plain` and cannot execute. The html branch is the sole outlier in a method whose name (`AutoFormat`) and symmetrical structure actively telegraph \"safe, format-agnostic reply.\"\n\n## Details\nThe issue resides in `res.go` within `(*DefaultRes).AutoFormat()`. The method negotiates against the request Accept header, selects one of `html | json | txt | xml | msgpack | cbor`, and serializes the caller-supplied body accordingly.\n\nThe \"html\" branch concatenates the stringified body directly into HTML markup with no output encoding:\n- `accept` comes from `r.c.Accepts(...)`, i.e. is fully attacker-controlled. An attacker can force the \"html\" branch on any `AutoFormat()` call regardless of which format the developer tested against.\n- `b` is produced from `body` via direct assignment (`string` / `[]byte`) or `fmt.Sprintf(\"%v\", body)`. No `html.EscapeString` is applied.\n- The resulting string is sent as `text/html; charset=utf-8`, so browsers render it as active HTML.\n\n```go\n// res.go\nfunc (r *DefaultRes) AutoFormat(body any) error {\n\n    accept := r.c.DefaultReq.Accepts(\"html\", \"json\", \"txt\", \"xml\", \"msgpack\", \"cbor\")\n\n    r.Type(accept)\n    var b string\n    switch val := body.(type) {\n    case string:\n        b = val\n    case []byte:\n        b = r.c.app.toString(val)\n    default:\n        b = fmt.Sprintf(\"%v\", val)\n    }\n\n    switch accept {\n    case \"txt\":\n        return r.SendString(b)\n    case \"json\":\n        return r.JSON(body)\n    case \"xml\":\n        return r.XML(body)\n    case \"html\":\n        return r.SendString(\"\u003cp\u003e\" + b + \"\u003c/p\u003e\")\n    case \"msgpack\":\n        return r.MsgPack(body)\n    case \"cbor\":\n        return r.CBOR(body)\n    }\n    return r.SendString(b)\n}\n```\n## Impact\n\nThis impacts all current v3 releases ≤ 3.1.0 containing `DefaultRes.AutoFormat`, and all current v2 releases ≤ 2.52.12 where the identical `\"\u003cp\u003e\" + b + \"\u003c/p\u003e\"` construction exists in `(*Ctx).Format()`. Exploitation requires that an application call `c.AutoFormat(v)` where `v` (or a field stringified by `%v`) contains request-influenced data.\n\nA handler that uses `AutoFormat()` to serve multiple representations of the same data can be turned into an HTML XSS sink when the client sends `Accept: text/html`, even if the developer only tested the JSON path.\n\nThis may result in:\n- **Reflected XSS** in the application's origin via any request-derived value reaching `AutoFormat`.\n- **Stored XSS** where the reflected value originates from persisted input later passed to `AutoFormat`.\n\n## Proposed Patch\n\nThe injection surface is `r.Type(\"html\")` followed by `r.SendString(b)` with unescaped caller data, where it constructs markup on the caller's behalf around a value whose HTML-ness the caller did not declare. A few options:\n- `AutoFormat()` should treat `body` as data, not markup, in the `\"html\"` branch and escape it before concatenating it into the framework-generated `\u003cp\u003e` wrapper. Callers that need raw negotiated HTML should use `Format()` with an explicit HTML handler.\n- Introduce a sibling method that escapes, leave `AutoFormat` alone for backward compatibility.\n\nHTML-escape the value in the \"html\" branch before concatenating it into the `\u003cp\u003e` wrapper.\n```go\nimport \"html\"\n\n// ...\ncase \"html\":\n    return r.SendString(\"\u003cp\u003e\" + html.EscapeString(b) + \"\u003c/p\u003e\")\n```\n\n`html.EscapeString` escapes `\u003c`, `\u003e`, `\u0026`, `'`, `\"`, which is sufficient for an element-text context. Apply the same change to v2's `(*Ctx).Format()`.\n\n## Proof of Concept\n\n```bash\n# Create project directory\nmkdir fiber-xss-poc \u0026\u0026 cd fiber-xss-poc\n\n# Initialize Go module\ngo mod init fiber-xss-poc\n\n# Install Fiber v3\ngo get github.com/gofiber/fiber/v3\n\n# Create the PoC file\ncat \u003e main.go \u003c\u003c 'EOF'\npackage main\n\nimport (\n\t\"github.com/gofiber/fiber/v3\"\n)\n\ntype User struct {\n\tID   int    `json:\"id\"`\n\tName string `json:\"name\"`\n}\n\nfunc main() {\n\tapp := fiber.New()\n\t\n\tapp.Get(\"/api/user\", func(c fiber.Ctx) error {\n\t\tuser := User{\n\t\t\tID:   1,\n\t\t\tName: c.Query(\"name\", \"anonymous\"),\n\t\t}\n\t\treturn c.AutoFormat(user)\n\t})\n\n\tapp.Listen(\":3000\")\n}\nEOF\n\n# Run it\ngo run main.go\n}\n```\n\nBenign JSON\n```bash\ncurl -s 'http://127.0.0.1:3000/api/user?name=Alice' -H 'Accept: application/json'\n{\"id\":1,\"name\":\"Alice\"}\n```\n\nHTML sink enables XSS\n```bash\ncurl -s 'http://127.0.0.1:3000/api/user?name=\u003cscript\u003ealert(document.domain)\u003c/script\u003e' -H 'Accept: text/html'\n\u003cp\u003e{1 \u003cscript\u003ealert(document.domain)\u003c/script\u003e}\u003c/p\u003e\n```","status":"published","published":"2026-05-05T20:13:23Z","modified":"2026-05-13T14:20:15Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:40:08.003212Z"}],"nvd":[{"id":"CVE-2026-42554","description":"Fiber is a web framework for Go. Prior to 2.52.12 and 3.1.0, Cross-Site Scripting vulnerability in Go Fiber allows a remote attacker to inject arbitrary HTML/JavaScript by supplying Accept: text/html on any request whose handler passes attacker-influenced data to the AutoFormat() feature. The developer opts into content negotiation by calling AutoFormat(), but does not opt into raw HTML emission for a particular request; Fiber chooses that branch from attacker-controlled Accept. The html branch is the sole outlier in a method whose name (AutoFormat) and symmetrical structure actively telegraph \"safe, format-agnostic reply.\" This vulnerability is fixed in 2.52.12 and 3.1.0.","status":"published","published":"2026-05-11T23:19:48.083Z","modified":"2026-10-26T18:10:00.173Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:18.239974Z"}],"osv":[{"id":"CVE-2026-42554","title":"Fiber: XSS in AutoFormat Content Negotiation","description":"Fiber is a web framework for Go. Prior to 2.52.12 and 3.1.0, Cross-Site Scripting vulnerability in Go Fiber allows a remote attacker to inject arbitrary HTML/JavaScript by supplying Accept: text/html on any request whose handler passes attacker-influenced data to the AutoFormat() feature. The developer opts into content negotiation by calling AutoFormat(), but does not opt into raw HTML emission for a particular request; Fiber chooses that branch from attacker-controlled Accept. The html branch is the sole outlier in a method whose name (AutoFormat) and symmetrical structure actively telegraph \"safe, format-agnostic reply.\" This vulnerability is fixed in 2.52.12 and 3.1.0.","status":"published","published":"2026-05-11T21:47:17.133Z","modified":"2026-10-28T02:30:41.527685441Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:45:04.117819Z"},{"id":"GHSA-qjv7-627w-8qjv","title":"Fiber vulnerable to XSS in AutoFormat Content Negotiation","description":"## Summary\n\n**Description**\n\nA Cross-Site Scripting (CWE-79) vulnerability in Go Fiber allows a remote attacker to inject arbitrary HTML/JavaScript by supplying `Accept: text/html` on any request whose handler passes attacker-influenced data to the AutoFormat() feature. This affects `github.com/gofiber/fiber/v3` (`DefaultRes.AutoFormat`) through version 3.1.0 and `github.com/gofiber/fiber/v2` (`Ctx.Format`) through version 2.52.12. \n\nThe developer opts into content negotiation by calling AutoFormat(), but does not opt into raw HTML emission for a particular request; Fiber chooses that branch from attacker-controlled Accept. Five of the six branches of the same method already escape. `JSON`, `XML`, `MsgPack`, and `CBOR` all route through encoders that neutralize markup; the txt branch emits `text/plain` and cannot execute. The html branch is the sole outlier in a method whose name (`AutoFormat`) and symmetrical structure actively telegraph \"safe, format-agnostic reply.\"\n\n## Details\nThe issue resides in `res.go` within `(*DefaultRes).AutoFormat()`. The method negotiates against the request Accept header, selects one of `html | json | txt | xml | msgpack | cbor`, and serializes the caller-supplied body accordingly.\n\nThe \"html\" branch concatenates the stringified body directly into HTML markup with no output encoding:\n- `accept` comes from `r.c.Accepts(...)`, i.e. is fully attacker-controlled. An attacker can force the \"html\" branch on any `AutoFormat()` call regardless of which format the developer tested against.\n- `b` is produced from `body` via direct assignment (`string` / `[]byte`) or `fmt.Sprintf(\"%v\", body)`. No `html.EscapeString` is applied.\n- The resulting string is sent as `text/html; charset=utf-8`, so browsers render it as active HTML.\n\n```go\n// res.go\nfunc (r *DefaultRes) AutoFormat(body any) error {\n\n    accept := r.c.DefaultReq.Accepts(\"html\", \"json\", \"txt\", \"xml\", \"msgpack\", \"cbor\")\n\n    r.Type(accept)\n    var b string\n    switch val := body.(type) {\n    case string:\n        b = val\n    case []byte:\n        b = r.c.app.toString(val)\n    default:\n        b = fmt.Sprintf(\"%v\", val)\n    }\n\n    switch accept {\n    case \"txt\":\n        return r.SendString(b)\n    case \"json\":\n        return r.JSON(body)\n    case \"xml\":\n        return r.XML(body)\n    case \"html\":\n        return r.SendString(\"\u003cp\u003e\" + b + \"\u003c/p\u003e\")\n    case \"msgpack\":\n        return r.MsgPack(body)\n    case \"cbor\":\n        return r.CBOR(body)\n    }\n    return r.SendString(b)\n}\n```\n## Impact\n\nThis impacts all current v3 releases ≤ 3.1.0 containing `DefaultRes.AutoFormat`, and all current v2 releases ≤ 2.52.12 where the identical `\"\u003cp\u003e\" + b + \"\u003c/p\u003e\"` construction exists in `(*Ctx).Format()`. Exploitation requires that an application call `c.AutoFormat(v)` where `v` (or a field stringified by `%v`) contains request-influenced data.\n\nA handler that uses `AutoFormat()` to serve multiple representations of the same data can be turned into an HTML XSS sink when the client sends `Accept: text/html`, even if the developer only tested the JSON path.\n\nThis may result in:\n- **Reflected XSS** in the application's origin via any request-derived value reaching `AutoFormat`.\n- **Stored XSS** where the reflected value originates from persisted input later passed to `AutoFormat`.\n\n## Proposed Patch\n\nThe injection surface is `r.Type(\"html\")` followed by `r.SendString(b)` with unescaped caller data, where it constructs markup on the caller's behalf around a value whose HTML-ness the caller did not declare. A few options:\n- `AutoFormat()` should treat `body` as data, not markup, in the `\"html\"` branch and escape it before concatenating it into the framework-generated `\u003cp\u003e` wrapper. Callers that need raw negotiated HTML should use `Format()` with an explicit HTML handler.\n- Introduce a sibling method that escapes, leave `AutoFormat` alone for backward compatibility.\n\nHTML-escape the value in the \"html\" branch before concatenating it into the `\u003cp\u003e` wrapper.\n```go\nimport \"html\"\n\n// ...\ncase \"html\":\n    return r.SendString(\"\u003cp\u003e\" + html.EscapeString(b) + \"\u003c/p\u003e\")\n```\n\n`html.EscapeString` escapes `\u003c`, `\u003e`, `\u0026`, `'`, `\"`, which is sufficient for an element-text context. Apply the same change to v2's `(*Ctx).Format()`.\n\n## Proof of Concept\n\n```bash\n# Create project directory\nmkdir fiber-xss-poc \u0026\u0026 cd fiber-xss-poc\n\n# Initialize Go module\ngo mod init fiber-xss-poc\n\n# Install Fiber v3\ngo get github.com/gofiber/fiber/v3\n\n# Create the PoC file\ncat \u003e main.go \u003c\u003c 'EOF'\npackage main\n\nimport (\n\t\"github.com/gofiber/fiber/v3\"\n)\n\ntype User struct {\n\tID   int    `json:\"id\"`\n\tName string `json:\"name\"`\n}\n\nfunc main() {\n\tapp := fiber.New()\n\t\n\tapp.Get(\"/api/user\", func(c fiber.Ctx) error {\n\t\tuser := User{\n\t\t\tID:   1,\n\t\t\tName: c.Query(\"name\", \"anonymous\"),\n\t\t}\n\t\treturn c.AutoFormat(user)\n\t})\n\n\tapp.Listen(\":3000\")\n}\nEOF\n\n# Run it\ngo run main.go\n}\n```\n\nBenign JSON\n```bash\ncurl -s 'http://127.0.0.1:3000/api/user?name=Alice' -H 'Accept: application/json'\n{\"id\":1,\"name\":\"Alice\"}\n```\n\nHTML sink enables XSS\n```bash\ncurl -s 'http://127.0.0.1:3000/api/user?name=\u003cscript\u003ealert(document.domain)\u003c/script\u003e' -H 'Accept: text/html'\n\u003cp\u003e{1 \u003cscript\u003ealert(document.domain)\u003c/script\u003e}\u003c/p\u003e\n```","status":"published","published":"2026-05-05T20:13:23Z","modified":"2026-09-10T03:50:47.332641426Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:54.760124Z"},{"id":"GO-2026-5585","title":"Fiber vulnerable to XSS in AutoFormat Content Negotiation in github.com/gofiber/fiber","description":"Fiber vulnerable to XSS in AutoFormat Content Negotiation in github.com/gofiber/fiber","status":"published","published":"2026-07-24T18:35:55Z","modified":"2026-07-24T19:00:24.231440095Z","updated_at":"2026-11-02T15:47:02.556545Z"},{"id":"openSUSE-SU-2026:21551-1","title":"Security update for govulncheck-vulndb","description":"This update for govulncheck-vulndb fixes the following issues:\n\n- Update to version 0.0.20260727T201416 2026-07-27T20:14:16Z (jsc#PED-11136):\n\n Go CVE Numbering Authority IDs added or updated with aliases:\n * GO-2026-5046 CVE-2026-46385 GHSA-w8j3-pq8g-8m7w\n * GO-2026-5047 CVE-2026-46384 GHSA-mc57-h6j3-3hmv\n * GO-2026-5048 GHSA-mx64-mj3q-7prj\n * GO-2026-5051\n * GO-2026-5069 CVE-2026-30246 GHSA-35hp-hqmv-8qg8\n * GO-2026-5074 CVE-2026-45022 GHSA-389r-gv7p-r3rp\n * GO-2026-5105 CVE-2026-41506 GHSA-3xc5-wrhm-f963\n * GO-2026-5116 CVE-2026-44517 GHSA-49p4-px3h-rq49\n * GO-2026-5158 CVE-2026-41178 GHSA-5wrp-cwcj-q835\n * GO-2026-5198 CVE-2026-41642 GHSA-7235-89m6-f4px\n * GO-2026-5208 CVE-2026-40890 GHSA-77fj-vx54-gvh7\n * GO-2026-5266 CVE-2026-41643 GHSA-8rxh-r2p6-7f2q\n * GO-2026-5309 GHSA-c3wq-j5vh-68rc\n * GO-2026-5327 CVE-2026-2303 GHSA-cp6g-7hqx-qxhp\n * GO-2026-5336 CVE-2026-45571 GHSA-crhj-59gh-8x96\n * GO-2026-5346 CVE-2026-52845 GHSA-f59h-q822-g45g\n * GO-2026-5408 GHSA-gx7w-56w6-g48x\n * GO-2026-5426 CVE-2026-39883 GHSA-hfvc-g4fc-pqhx\n * GO-2026-5435 CVE-2026-35206 GHSA-hr2v-4r36-88hr\n * GO-2026-5452 CVE-2026-34783 GHSA-j6v5-g24h-vg4j\n * GO-2026-5463 CVE-2026-8276 GHSA-jcqv-2g3v-gm88\n * GO-2026-5471 CVE-2026-6993 GHSA-jj45-xvq5-rhh9\n * GO-2026-5490 CVE-2026-44740 GHSA-m3xc-h892-ggx6\n * GO-2026-5492 CVE-2026-45135 GHSA-m675-2p33-xv9g\n * GO-2026-5506 CVE-2026-29181 GHSA-mh2q-q3fh-2475\n * GO-2026-5525 CVE-2026-42285 GHSA-p3w2-64xm-833j\n * GO-2026-5543 CVE-2026-32952 GHSA-pjcq-xvwq-hhpj\n * GO-2026-5548 CVE-2026-44166 GHSA-pq7p-mc74-g65w\n * GO-2026-5566 CVE-2026-35205 GHSA-q5jf-9vfq-h4h7\n * GO-2026-5569 GHSA-q76j-gcg9-vxc6\n * GO-2026-5585 CVE-2026-42554 GHSA-qjv7-627w-8qjv\n * GO-2026-5593 CVE-2026-40611 GHSA-qqx8-2xmm-jrv8\n * GO-2026-5595 CVE-2026-52844 GHSA-qrp7-cvwr-j2c6\n * GO-2026-5597 CVE-2026-44973 GHSA-qw64-3x98-g7q2\n * GO-2026-5606 GHSA-r46f-3rpw-hxrv\n * GO-2026-5617 CVE-2026-42306 GHSA-rg2x-37c3-w2rh\n * GO-2026-5660 CVE-2026-52846 GHSA-vcc4-2c75-vc9v\n * GO-2026-5666 CVE-2026-35204 GHSA-vmx8-mqv2-9gmg\n * GO-2026-5684 CVE-2026-42328 GHSA-w239-58x2-q8p5\n * GO-2026-5693 GHSA-w5pp-99ch-qj29\n * GO-2026-5730 GHSA-wwhq-w58m-w29c\n * GO-2026-5736 CVE-2026-44283 GHSA-x35m-3gp4-4fh5\n * GO-2026-5740 CVE-2026-44301 GHSA-x597-9fr4-5857\n * GO-2026-5748 CVE-2026-7482 GHSA-x8qc-fggm-mpqg\n * GO-2026-5750 CVE-2026-7020 GHSA-x99g-8v8j-25j2\n * GO-2026-5774 GHSA-3fxj-6jh8-hvhx\n * GO-2026-5775 GHSA-9g5q-2w5x-hmxf\n * GO-2026-5777 GHSA-rjr7-jggh-pgcp\n * GO-2026-5781\n * GO-2026-5841 GHSA-259r-337f-4rfw\n * GO-2026-5879 CVE-2026-50162 GHSA-8xwf-rjm4-xvhv\n * GO-2026-5880 CVE-2026-50163 GHSA-fxhp-mv3v-67qp\n * GO-2026-5882 CVE-2026-50151 GHSA-jxpm-75mh-9fp7\n * GO-2026-5884 GHSA-vh4v-2xq2-g5cg\n * GO-2026-5885 CVE-2026-48978 GHSA-xf85-363p-868w\n * GO-2026-5886 CVE-2026-44332 GHSA-g5vh-55hw-rxm8\n * GO-2026-5887 CVE-2026-45045 GHSA-gcfq-8gqf-4876\n * GO-2026-5912 CVE-2026-53624 GHSA-gv83-gqw6-9j2c\n * GO-2026-5954 CVE-2026-49838 GHSA-frrj-87jh-2772\n * GO-2026-5955 CVE-2026-49837 GHSA-gjrg-jjr3-56cm\n * GO-2026-5960 CVE-2026-54063 GHSA-h69g-9hx6-f3v4\n * GO-2026-5971 CVE-2026-37462 GHSA-pw7p-7fqv-hpj8\n * GO-2026-5983 CVE-2026-54448 GHSA-q3fv-x8vg-qqm4\n * GO-2026-6000 CVE-2026-50274 GHSA-74j5-xf3v-crq8\n * GO-2026-6058 CVE-2026-58442 GHSA-h2x6-g7q6-344v\n * GO-2026-6059 CVE-2026-58431 GHSA-h56g-4qw7-2mxg\n * GO-2026-6060 CVE-2026-58426 GHSA-hg5r-vq93-9fv6\n * GO-2026-6061 GHSA-hrxh-6v49-42gf\n * GO-2026-6062 CVE-2026-58434 GHSA-j2w3-9c3r-g83q\n * GO-2026-6063 CVE-2026-58417 GHSA-jr5x-6h83-wrxf\n * GO-2026-6064 CVE-2026-55984 GHSA-m932-crvm-gcp5\n * GO-2026-6065 CVE-2026-55982 GHSA-mg4f-x9v4-6h2p\n * GO-2026-6066 CVE-2026-58507 GHSA-p4mj-98mv-xq26\n * GO-2026-6067 CVE-2026-58445 GHSA-pgqf-926r-548m\n * GO-2026-6068 CVE-2026-58427 GHSA-prr9-9mp4-5gp2\n * GO-2026-6069 CVE-2026-58510 GHSA-q423-49rw-g9mh\n * GO-2026-6070 CVE-2026-58432 GHSA-q9pg-jj6x-j9p6\n * GO-2026-6071 CVE-2026-59766 GHSA-qf2f-qh6p-7v89\n * GO-2026-6072 CVE-2026-56750 GHSA-rgv6-xp99-6mgj\n * GO-2026-6073 CVE-2026-58435 GHSA-rh79-75qm-gwjr\n * GO-2026-6074 GHSA-rjvx-x5h2-6px5\n * GO-2026-6075 CVE-2026-58418 GHSA-rqhx-647v-wx32\n * GO-2026-6076 CVE-2026-25038 GHSA-v73x-hx65-6pf4\n * GO-2026-6077 CVE-2026-58421 GHSA-v96j-25gv-g2w9\n * GO-2026-6078 CVE-2026-55987 GHSA-vrhc-jjfc-m3m3\n * GO-2026-6079 CVE-2026-58425 GHSA-vxv2-8j6r-pcpg\n * GO-2026-6080 CVE-2026-58439 GHSA-w5pg-649r-p6gg\n * GO-2026-6081 CVE-2026-24451 GHSA-wrf9-r3h7-7x5v\n * GO-2026-6082 CVE-2026-42931 GHSA-wwqq-x6w4-frm2\n * GO-2026-6083 CVE-2026-23603 GHSA-x77v-q46j-393g\n * GO-2026-6084 CVE-2026-58441 GHSA-xmj7-xj85-hfc3\n * GO-2026-6085 CVE-2026-58438 GHSA-xv9x-fj9g-vj6h\n * GO-2026-6086 CVE-2026-58443 GHSA-xxjv-752h-3vp2\n","status":"published","published":"2026-08-10T17:38:07Z","modified":"2026-08-12T18:23:41.809969353Z","updated_at":"2026-11-02T16:58:41.885092Z"},{"id":"SUSE-SU-2026:23216-1","title":"Security update for govulncheck-vulndb","description":"This update for govulncheck-vulndb fixes the following issues:\n\n- Update to version 0.0.20260727T201416 2026-07-27T20:14:16Z (jsc#PED-11136):\n\n Go CVE Numbering Authority IDs added or updated with aliases:\n * GO-2026-5046 CVE-2026-46385 GHSA-w8j3-pq8g-8m7w\n * GO-2026-5047 CVE-2026-46384 GHSA-mc57-h6j3-3hmv\n * GO-2026-5048 GHSA-mx64-mj3q-7prj\n * GO-2026-5051\n * GO-2026-5069 CVE-2026-30246 GHSA-35hp-hqmv-8qg8\n * GO-2026-5074 CVE-2026-45022 GHSA-389r-gv7p-r3rp\n * GO-2026-5105 CVE-2026-41506 GHSA-3xc5-wrhm-f963\n * GO-2026-5116 CVE-2026-44517 GHSA-49p4-px3h-rq49\n * GO-2026-5158 CVE-2026-41178 GHSA-5wrp-cwcj-q835\n * GO-2026-5198 CVE-2026-41642 GHSA-7235-89m6-f4px\n * GO-2026-5208 CVE-2026-40890 GHSA-77fj-vx54-gvh7\n * GO-2026-5266 CVE-2026-41643 GHSA-8rxh-r2p6-7f2q\n * GO-2026-5309 GHSA-c3wq-j5vh-68rc\n * GO-2026-5327 CVE-2026-2303 GHSA-cp6g-7hqx-qxhp\n * GO-2026-5336 CVE-2026-45571 GHSA-crhj-59gh-8x96\n * GO-2026-5346 CVE-2026-52845 GHSA-f59h-q822-g45g\n * GO-2026-5408 GHSA-gx7w-56w6-g48x\n * GO-2026-5426 CVE-2026-39883 GHSA-hfvc-g4fc-pqhx\n * GO-2026-5435 CVE-2026-35206 GHSA-hr2v-4r36-88hr\n * GO-2026-5452 CVE-2026-34783 GHSA-j6v5-g24h-vg4j\n * GO-2026-5463 CVE-2026-8276 GHSA-jcqv-2g3v-gm88\n * GO-2026-5471 CVE-2026-6993 GHSA-jj45-xvq5-rhh9\n * GO-2026-5490 CVE-2026-44740 GHSA-m3xc-h892-ggx6\n * GO-2026-5492 CVE-2026-45135 GHSA-m675-2p33-xv9g\n * GO-2026-5506 CVE-2026-29181 GHSA-mh2q-q3fh-2475\n * GO-2026-5525 CVE-2026-42285 GHSA-p3w2-64xm-833j\n * GO-2026-5543 CVE-2026-32952 GHSA-pjcq-xvwq-hhpj\n * GO-2026-5548 CVE-2026-44166 GHSA-pq7p-mc74-g65w\n * GO-2026-5566 CVE-2026-35205 GHSA-q5jf-9vfq-h4h7\n * GO-2026-5569 GHSA-q76j-gcg9-vxc6\n * GO-2026-5585 CVE-2026-42554 GHSA-qjv7-627w-8qjv\n * GO-2026-5593 CVE-2026-40611 GHSA-qqx8-2xmm-jrv8\n * GO-2026-5595 CVE-2026-52844 GHSA-qrp7-cvwr-j2c6\n * GO-2026-5597 CVE-2026-44973 GHSA-qw64-3x98-g7q2\n * GO-2026-5606 GHSA-r46f-3rpw-hxrv\n * GO-2026-5617 CVE-2026-42306 GHSA-rg2x-37c3-w2rh\n * GO-2026-5660 CVE-2026-52846 GHSA-vcc4-2c75-vc9v\n * GO-2026-5666 CVE-2026-35204 GHSA-vmx8-mqv2-9gmg\n * GO-2026-5684 CVE-2026-42328 GHSA-w239-58x2-q8p5\n * GO-2026-5693 GHSA-w5pp-99ch-qj29\n * GO-2026-5730 GHSA-wwhq-w58m-w29c\n * GO-2026-5736 CVE-2026-44283 GHSA-x35m-3gp4-4fh5\n * GO-2026-5740 CVE-2026-44301 GHSA-x597-9fr4-5857\n * GO-2026-5748 CVE-2026-7482 GHSA-x8qc-fggm-mpqg\n * GO-2026-5750 CVE-2026-7020 GHSA-x99g-8v8j-25j2\n * GO-2026-5774 GHSA-3fxj-6jh8-hvhx\n * GO-2026-5775 GHSA-9g5q-2w5x-hmxf\n * GO-2026-5777 GHSA-rjr7-jggh-pgcp\n * GO-2026-5781\n * GO-2026-5841 GHSA-259r-337f-4rfw\n * GO-2026-5879 CVE-2026-50162 GHSA-8xwf-rjm4-xvhv\n * GO-2026-5880 CVE-2026-50163 GHSA-fxhp-mv3v-67qp\n * GO-2026-5882 CVE-2026-50151 GHSA-jxpm-75mh-9fp7\n * GO-2026-5884 GHSA-vh4v-2xq2-g5cg\n * GO-2026-5885 CVE-2026-48978 GHSA-xf85-363p-868w\n * GO-2026-5886 CVE-2026-44332 GHSA-g5vh-55hw-rxm8\n * GO-2026-5887 CVE-2026-45045 GHSA-gcfq-8gqf-4876\n * GO-2026-5912 CVE-2026-53624 GHSA-gv83-gqw6-9j2c\n * GO-2026-5954 CVE-2026-49838 GHSA-frrj-87jh-2772\n * GO-2026-5955 CVE-2026-49837 GHSA-gjrg-jjr3-56cm\n * GO-2026-5960 CVE-2026-54063 GHSA-h69g-9hx6-f3v4\n * GO-2026-5971 CVE-2026-37462 GHSA-pw7p-7fqv-hpj8\n * GO-2026-5983 CVE-2026-54448 GHSA-q3fv-x8vg-qqm4\n * GO-2026-6000 CVE-2026-50274 GHSA-74j5-xf3v-crq8\n * GO-2026-6058 CVE-2026-58442 GHSA-h2x6-g7q6-344v\n * GO-2026-6059 CVE-2026-58431 GHSA-h56g-4qw7-2mxg\n * GO-2026-6060 CVE-2026-58426 GHSA-hg5r-vq93-9fv6\n * GO-2026-6061 GHSA-hrxh-6v49-42gf\n * GO-2026-6062 CVE-2026-58434 GHSA-j2w3-9c3r-g83q\n * GO-2026-6063 CVE-2026-58417 GHSA-jr5x-6h83-wrxf\n * GO-2026-6064 CVE-2026-55984 GHSA-m932-crvm-gcp5\n * GO-2026-6065 CVE-2026-55982 GHSA-mg4f-x9v4-6h2p\n * GO-2026-6066 CVE-2026-58507 GHSA-p4mj-98mv-xq26\n * GO-2026-6067 CVE-2026-58445 GHSA-pgqf-926r-548m\n * GO-2026-6068 CVE-2026-58427 GHSA-prr9-9mp4-5gp2\n * GO-2026-6069 CVE-2026-58510 GHSA-q423-49rw-g9mh\n * GO-2026-6070 CVE-2026-58432 GHSA-q9pg-jj6x-j9p6\n * GO-2026-6071 CVE-2026-59766 GHSA-qf2f-qh6p-7v89\n * GO-2026-6072 CVE-2026-56750 GHSA-rgv6-xp99-6mgj\n * GO-2026-6073 CVE-2026-58435 GHSA-rh79-75qm-gwjr\n * GO-2026-6074 GHSA-rjvx-x5h2-6px5\n * GO-2026-6075 CVE-2026-58418 GHSA-rqhx-647v-wx32\n * GO-2026-6076 CVE-2026-25038 GHSA-v73x-hx65-6pf4\n * GO-2026-6077 CVE-2026-58421 GHSA-v96j-25gv-g2w9\n * GO-2026-6078 CVE-2026-55987 GHSA-vrhc-jjfc-m3m3\n * GO-2026-6079 CVE-2026-58425 GHSA-vxv2-8j6r-pcpg\n * GO-2026-6080 CVE-2026-58439 GHSA-w5pg-649r-p6gg\n * GO-2026-6081 CVE-2026-24451 GHSA-wrf9-r3h7-7x5v\n * GO-2026-6082 CVE-2026-42931 GHSA-wwqq-x6w4-frm2\n * GO-2026-6083 CVE-2026-23603 GHSA-x77v-q46j-393g\n * GO-2026-6084 CVE-2026-58441 GHSA-xmj7-xj85-hfc3\n * GO-2026-6085 CVE-2026-58438 GHSA-xv9x-fj9g-vj6h\n * GO-2026-6086 CVE-2026-58443 GHSA-xxjv-752h-3vp2\n","status":"published","published":"2026-08-10T17:34:15Z","modified":"2026-08-27T18:23:09.233788558Z","updated_at":"2026-11-02T15:54:03.503431Z"},{"id":"SUSE-SU-2026:23227-1","title":"Security update for govulncheck-vulndb","description":"This update for govulncheck-vulndb fixes the following issues:\n\n- Update to version 0.0.20260727T201416 2026-07-27T20:14:16Z (jsc#PED-11136):\n\n Go CVE Numbering Authority IDs added or updated with aliases:\n * GO-2026-5046 CVE-2026-46385 GHSA-w8j3-pq8g-8m7w\n * GO-2026-5047 CVE-2026-46384 GHSA-mc57-h6j3-3hmv\n * GO-2026-5048 GHSA-mx64-mj3q-7prj\n * GO-2026-5051\n * GO-2026-5069 CVE-2026-30246 GHSA-35hp-hqmv-8qg8\n * GO-2026-5074 CVE-2026-45022 GHSA-389r-gv7p-r3rp\n * GO-2026-5105 CVE-2026-41506 GHSA-3xc5-wrhm-f963\n * GO-2026-5116 CVE-2026-44517 GHSA-49p4-px3h-rq49\n * GO-2026-5158 CVE-2026-41178 GHSA-5wrp-cwcj-q835\n * GO-2026-5198 CVE-2026-41642 GHSA-7235-89m6-f4px\n * GO-2026-5208 CVE-2026-40890 GHSA-77fj-vx54-gvh7\n * GO-2026-5266 CVE-2026-41643 GHSA-8rxh-r2p6-7f2q\n * GO-2026-5309 GHSA-c3wq-j5vh-68rc\n * GO-2026-5327 CVE-2026-2303 GHSA-cp6g-7hqx-qxhp\n * GO-2026-5336 CVE-2026-45571 GHSA-crhj-59gh-8x96\n * GO-2026-5346 CVE-2026-52845 GHSA-f59h-q822-g45g\n * GO-2026-5408 GHSA-gx7w-56w6-g48x\n * GO-2026-5426 CVE-2026-39883 GHSA-hfvc-g4fc-pqhx\n * GO-2026-5435 CVE-2026-35206 GHSA-hr2v-4r36-88hr\n * GO-2026-5452 CVE-2026-34783 GHSA-j6v5-g24h-vg4j\n * GO-2026-5463 CVE-2026-8276 GHSA-jcqv-2g3v-gm88\n * GO-2026-5471 CVE-2026-6993 GHSA-jj45-xvq5-rhh9\n * GO-2026-5490 CVE-2026-44740 GHSA-m3xc-h892-ggx6\n * GO-2026-5492 CVE-2026-45135 GHSA-m675-2p33-xv9g\n * GO-2026-5506 CVE-2026-29181 GHSA-mh2q-q3fh-2475\n * GO-2026-5525 CVE-2026-42285 GHSA-p3w2-64xm-833j\n * GO-2026-5543 CVE-2026-32952 GHSA-pjcq-xvwq-hhpj\n * GO-2026-5548 CVE-2026-44166 GHSA-pq7p-mc74-g65w\n * GO-2026-5566 CVE-2026-35205 GHSA-q5jf-9vfq-h4h7\n * GO-2026-5569 GHSA-q76j-gcg9-vxc6\n * GO-2026-5585 CVE-2026-42554 GHSA-qjv7-627w-8qjv\n * GO-2026-5593 CVE-2026-40611 GHSA-qqx8-2xmm-jrv8\n * GO-2026-5595 CVE-2026-52844 GHSA-qrp7-cvwr-j2c6\n * GO-2026-5597 CVE-2026-44973 GHSA-qw64-3x98-g7q2\n * GO-2026-5606 GHSA-r46f-3rpw-hxrv\n * GO-2026-5617 CVE-2026-42306 GHSA-rg2x-37c3-w2rh\n * GO-2026-5660 CVE-2026-52846 GHSA-vcc4-2c75-vc9v\n * GO-2026-5666 CVE-2026-35204 GHSA-vmx8-mqv2-9gmg\n * GO-2026-5684 CVE-2026-42328 GHSA-w239-58x2-q8p5\n * GO-2026-5693 GHSA-w5pp-99ch-qj29\n * GO-2026-5730 GHSA-wwhq-w58m-w29c\n * GO-2026-5736 CVE-2026-44283 GHSA-x35m-3gp4-4fh5\n * GO-2026-5740 CVE-2026-44301 GHSA-x597-9fr4-5857\n * GO-2026-5748 CVE-2026-7482 GHSA-x8qc-fggm-mpqg\n * GO-2026-5750 CVE-2026-7020 GHSA-x99g-8v8j-25j2\n * GO-2026-5774 GHSA-3fxj-6jh8-hvhx\n * GO-2026-5775 GHSA-9g5q-2w5x-hmxf\n * GO-2026-5777 GHSA-rjr7-jggh-pgcp\n * GO-2026-5781\n * GO-2026-5841 GHSA-259r-337f-4rfw\n * GO-2026-5879 CVE-2026-50162 GHSA-8xwf-rjm4-xvhv\n * GO-2026-5880 CVE-2026-50163 GHSA-fxhp-mv3v-67qp\n * GO-2026-5882 CVE-2026-50151 GHSA-jxpm-75mh-9fp7\n * GO-2026-5884 GHSA-vh4v-2xq2-g5cg\n * GO-2026-5885 CVE-2026-48978 GHSA-xf85-363p-868w\n * GO-2026-5886 CVE-2026-44332 GHSA-g5vh-55hw-rxm8\n * GO-2026-5887 CVE-2026-45045 GHSA-gcfq-8gqf-4876\n * GO-2026-5912 CVE-2026-53624 GHSA-gv83-gqw6-9j2c\n * GO-2026-5954 CVE-2026-49838 GHSA-frrj-87jh-2772\n * GO-2026-5955 CVE-2026-49837 GHSA-gjrg-jjr3-56cm\n * GO-2026-5960 CVE-2026-54063 GHSA-h69g-9hx6-f3v4\n * GO-2026-5971 CVE-2026-37462 GHSA-pw7p-7fqv-hpj8\n * GO-2026-5983 CVE-2026-54448 GHSA-q3fv-x8vg-qqm4\n * GO-2026-6000 CVE-2026-50274 GHSA-74j5-xf3v-crq8\n * GO-2026-6058 CVE-2026-58442 GHSA-h2x6-g7q6-344v\n * GO-2026-6059 CVE-2026-58431 GHSA-h56g-4qw7-2mxg\n * GO-2026-6060 CVE-2026-58426 GHSA-hg5r-vq93-9fv6\n * GO-2026-6061 GHSA-hrxh-6v49-42gf\n * GO-2026-6062 CVE-2026-58434 GHSA-j2w3-9c3r-g83q\n * GO-2026-6063 CVE-2026-58417 GHSA-jr5x-6h83-wrxf\n * GO-2026-6064 CVE-2026-55984 GHSA-m932-crvm-gcp5\n * GO-2026-6065 CVE-2026-55982 GHSA-mg4f-x9v4-6h2p\n * GO-2026-6066 CVE-2026-58507 GHSA-p4mj-98mv-xq26\n * GO-2026-6067 CVE-2026-58445 GHSA-pgqf-926r-548m\n * GO-2026-6068 CVE-2026-58427 GHSA-prr9-9mp4-5gp2\n * GO-2026-6069 CVE-2026-58510 GHSA-q423-49rw-g9mh\n * GO-2026-6070 CVE-2026-58432 GHSA-q9pg-jj6x-j9p6\n * GO-2026-6071 CVE-2026-59766 GHSA-qf2f-qh6p-7v89\n * GO-2026-6072 CVE-2026-56750 GHSA-rgv6-xp99-6mgj\n * GO-2026-6073 CVE-2026-58435 GHSA-rh79-75qm-gwjr\n * GO-2026-6074 GHSA-rjvx-x5h2-6px5\n * GO-2026-6075 CVE-2026-58418 GHSA-rqhx-647v-wx32\n * GO-2026-6076 CVE-2026-25038 GHSA-v73x-hx65-6pf4\n * GO-2026-6077 CVE-2026-58421 GHSA-v96j-25gv-g2w9\n * GO-2026-6078 CVE-2026-55987 GHSA-vrhc-jjfc-m3m3\n * GO-2026-6079 CVE-2026-58425 GHSA-vxv2-8j6r-pcpg\n * GO-2026-6080 CVE-2026-58439 GHSA-w5pg-649r-p6gg\n * GO-2026-6081 CVE-2026-24451 GHSA-wrf9-r3h7-7x5v\n * GO-2026-6082 CVE-2026-42931 GHSA-wwqq-x6w4-frm2\n * GO-2026-6083 CVE-2026-23603 GHSA-x77v-q46j-393g\n * GO-2026-6084 CVE-2026-58441 GHSA-xmj7-xj85-hfc3\n * GO-2026-6085 CVE-2026-58438 GHSA-xv9x-fj9g-vj6h\n * GO-2026-6086 CVE-2026-58443 GHSA-xxjv-752h-3vp2\n","status":"published","published":"2026-08-10T17:34:15Z","modified":"2026-08-27T18:23:10.174179412Z","updated_at":"2026-11-02T15:54:03.503431Z"}]}}