{"id":"CVE-2026-68539","aliases":["EUVD-2026-124056","GHSA-vw2v-g4x7-xcqg"],"status":"published","title":"fulgur: Unbounded string-set value accumulation causes memory/CPU exhaustion (denial of service)","description":"fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.4.4 to before version 0.29.0, the CSS string-set named-string values resolved from a document were accumulated per element with no memory budget, letting a small crafted document amplify into large retained memory (and the CPU to copy it) — results in a denial of service. This issue has been patched in version 0.29.0.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-13","score":0.00669,"percentile":0.5251,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-770"],"published":"2026-11-11T22:12:18Z","modified":"2026-11-12T10:45:38Z","products":[{"vendor":"fulgur-rs","product":"fulgur"}],"references":[{"url":"https://github.com/fulgur-rs/fulgur/security/advisories/GHSA-vw2v-g4x7-xcqg","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/fulgur-rs/fulgur/pull/582","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/fulgur-rs/fulgur/pull/584","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/fulgur-rs/fulgur/commit/1c4cdad003daef7c9dc6ef1362c50bcfaac13ea9","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/fulgur-rs/fulgur/commit/9248fbfd91a2ba8fc3dbd9e44ba681f52ed1ecd0","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/fulgur-rs/fulgur/releases/tag/v0.29.0","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68539.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68539","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-68539","title":"fulgur: Unbounded string-set value accumulation causes memory/CPU exhaustion (denial of service)","description":"fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.4.4 to before version 0.29.0, the CSS string-set named-string values resolved from a document were accumulated per element with no memory budget, letting a small crafted document amplify into large retained memory (and the CPU to copy it) — results in a denial of service. This issue has been patched in version 0.29.0.","status":"published","published":"2026-11-11T22:12:18.353Z","modified":"2026-11-12T17:54:25.525Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-400","CWE-770"],"updated_at":"2026-11-11T23:34:20.286844Z"}],"euvd":[{"id":"EUVD-2026-124056","description":"fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.4.4 to before version 0.29.0, the CSS string-set named-string values resolved from a document were accumulated per element with no memory budget, letting a small crafted document amplify into large retained memory (and the CPU to copy it) — results in a denial of service. This issue has been patched in version 0.29.0.","status":"published","published":"2026-11-11T22:12:18Z","modified":"2026-11-12T17:54:25Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-11T23:30:56.254469Z"}],"nvd":[{"id":"CVE-2026-68539","description":"fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.4.4 to before version 0.29.0, the CSS string-set named-string values resolved from a document were accumulated per element with no memory budget, letting a small crafted document amplify into large retained memory (and the CPU to copy it) — results in a denial of service. This issue has been patched in version 0.29.0.","status":"published","published":"2026-11-11T22:17:30.48Z","modified":"2026-11-12T18:17:53.107Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-400","CWE-770"],"updated_at":"2026-11-11T23:26:41.62195Z"}],"osv":[{"id":"CVE-2026-68539","title":"fulgur: Unbounded string-set value accumulation causes memory/CPU exhaustion (denial of service)","description":"fulgur converts untrusted HTML/CSS into PDF, commonly on a server that processes input supplied by many tenants. From version 0.4.4 to before version 0.29.0, the CSS string-set named-string values resolved from a document were accumulated per element with no memory budget, letting a small crafted document amplify into large retained memory (and the CPU to copy it) — results in a denial of service. This issue has been patched in version 0.29.0.","status":"published","published":"2026-11-11T22:12:18.353Z","modified":"2026-11-13T02:47:36.581313226Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400","CWE-770"],"updated_at":"2026-11-13T02:57:40.353388Z"}]}}