{"id":"CVE-2023-27483","aliases":["EUVD-2023-1111","GHSA-vfvj-3m3g-m532","GO-2023-1623"],"status":"published","title":"fieldpath's Paved.SetValue allows growing arrays up to arbitrary sizes in crossplane-runtime","description":"crossplane-runtime is a set of go libraries used to build Kubernetes controllers in Crossplane and its related stacks. An out of memory panic vulnerability has been discovered in affected versions. Applications that use the `Paved` type's `SetValue` method with user provided input without proper validation might use excessive amounts of memory and cause an out of memory panic. In the fieldpath package, the Paved.SetValue method sets a value on the Paved object according to the provided path, without any validation. This allows setting values in slices at any provided index, which grows the target array up to the requested index, the index is currently capped at max uint32 (4294967295) given how indexes are parsed,  but that is still an unnecessarily large value. If callers are not validating paths' indexes on their own, which most probably are not going to do, given that the input is parsed directly in the SetValue method, this could allow users to consume arbitrary amounts of memory. Applications that do not use the `Paved` type's `SetValue` method are not affected. This issue has been addressed in versions 0.16.1 and 0.19.2. Users are advised to upgrade. Users unable to upgrade can parse and validate the path before passing it to the `SetValue` method of the `Paved` type, constraining the index size as deemed appropriate.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00798,"percentile":0.57008,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-400"],"published":"2023-03-09T20:18:31Z","modified":"2026-10-28T02:30:25Z","fixes":[{"ecosystem":"Go","package":"github.com/crossplane/crossplane-runtime","fixed_in":["0.19.2","0.16.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/crossplane/crossplane-runtime","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.17.0"},{"fixed":"0.19.2"}]}]},{"source":"ghsa","ecosystem":"Go","package":"github.com/crossplane/crossplane-runtime","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.6.0"},{"fixed":"0.16.1"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/crossplane/crossplane-runtime","ranges":[{"type":"SEMVER","events":[{"introduced":"0.17.0"},{"fixed":"0.19.2"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/crossplane/crossplane-runtime","ranges":[{"type":"SEMVER","events":[{"introduced":"0.6.0"},{"fixed":"0.16.1"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/crossplane/crossplane-runtime","ranges":[{"type":"SEMVER","events":[{"introduced":"0.6.0"},{"fixed":"0.16.1"},{"introduced":"0.17.0"},{"fixed":"0.19.2"}]}]}],"products":[{"vendor":"crossplane","product":"crossplane-runtime"}],"references":[{"url":"https://github.com/crossplane/crossplane-runtime/security/advisories/GHSA-vfvj-3m3g-m532","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/crossplane/crossplane-runtime/commit/53508a9f4374604db140dd8ab2fa52276441e738","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27483","tags":["advisory"]},{"url":"https://pkg.go.dev/vuln/GO-2023-1623","tags":["web"]},{"url":"https://github.com/crossplane/crossplane-runtime/commit/f67177024d906aaf5e13ee7cd470b4e87a9fef40","tags":["web"]},{"url":"https://github.com/advisories/GHSA-vfvj-3m3g-m532"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27483.json","tags":["advisory"]},{"url":"https://github.com/crossplane/crossplane-runtime","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-27483","title":"fieldpath's Paved.SetValue allows growing arrays up to arbitrary sizes in crossplane-runtime","description":"crossplane-runtime is a set of go libraries used to build Kubernetes controllers in Crossplane and its related stacks. An out of memory panic vulnerability has been discovered in affected versions. Applications that use the `Paved` type's `SetValue` method with user provided input without proper validation might use excessive amounts of memory and cause an out of memory panic. In the fieldpath package, the Paved.SetValue method sets a value on the Paved object according to the provided path, without any validation. This allows setting values in slices at any provided index, which grows the target array up to the requested index, the index is currently capped at max uint32 (4294967295) given how indexes are parsed,  but that is still an unnecessarily large value. If callers are not validating paths' indexes on their own, which most probably are not going to do, given that the input is parsed directly in the SetValue method, this could allow users to consume arbitrary amounts of memory. Applications that do not use the `Paved` type's `SetValue` method are not affected. This issue has been addressed in versions 0.16.1 and 0.19.2. Users are advised to upgrade. Users unable to upgrade can parse and validate the path before passing it to the `SetValue` method of the `Paved` type, constraining the index size as deemed appropriate.","status":"published","published":"2023-03-09T20:18:31.955Z","modified":"2025-02-25T14:59:17.021Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-400","CWE-20"],"updated_at":"2026-11-02T14:35:26.63732Z"}],"euvd":[{"id":"EUVD-2023-1111","description":"crossplane-runtime is a set of go libraries used to build Kubernetes controllers in Crossplane and its related stacks. An out of memory panic vulnerability has been discovered in affected versions. Applications that use the `Paved` type's `SetValue` method with user provided input without proper validation might use excessive amounts of memory and cause an out of memory panic. In the fieldpath package, the Paved.SetValue method sets a value on the Paved object according to the provided path, without any validation. This allows setting values in slices at any provided index, which grows the target array up to the requested index, the index is currently capped at max uint32 (4294967295) given how indexes are parsed,  but that is still an unnecessarily large value. If callers are not validating paths' indexes on their own, which most probably are not going to do, given that the input is parsed directly in the SetValue method, this could allow users to consume arbitrary amounts of memory. Applications that do not use the `Paved` type's `SetValue` method are not affected. This issue has been addressed in versions 0.16.1 and 0.19.2. Users are advised to upgrade. Users unable to upgrade can parse and validate the path before passing it to the `SetValue` method of the `Paved` type, constraining the index size as deemed appropriate.","status":"published","published":"2023-03-09T20:18:31Z","modified":"2025-02-25T14:59:17Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T20:53:24.646946Z"}],"ghsa":[{"id":"GHSA-vfvj-3m3g-m532","title":"fieldpath's Paved.SetValue allows growing arrays up to arbitrary sizes in crossplane-runtime","description":"### Summary\n\nFuzz testing on `crossplane/crossplane`, by Ada Logics and sponsored by the CNCF, identified input to a function in the `fieldpath` package that can cause an out of memory panic. Applications that use the `Paved` type's `SetValue` method with user provided input without proper validation might use excessive amounts of memory and cause an out of memory panic.\n\n### Details\n\nIn the `fieldpath` package, the `SetValue` method of the `Paved` type sets a value on the inner object according to the provided path, without validating it first. This allows setting values in slices at any specific index and the code will grow the target array up to the required size. The index is currently capped at max uint32 (4294967295) given how indexes are parsed,  but that is still an unnecessarily large value.\n\n### Workaround\n\nUsers can parse and validate the path before passing it to the `SetValue` method of the `Paved` type, constraining the index size as deemed appropriate.\n\n### Credits\n\nDisclosed by Ada Logics in a fuzzing audit sponsored by CNCF.","status":"published","published":"2023-03-13T20:53:50Z","modified":"2023-04-04T21:35:47Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20","CWE-400"],"updated_at":"2026-11-02T14:36:49.768564Z"}],"nvd":[{"id":"CVE-2023-27483","description":"crossplane-runtime is a set of go libraries used to build Kubernetes controllers in Crossplane and its related stacks. An out of memory panic vulnerability has been discovered in affected versions. Applications that use the `Paved` type's `SetValue` method with user provided input without proper validation might use excessive amounts of memory and cause an out of memory panic. In the fieldpath package, the Paved.SetValue method sets a value on the Paved object according to the provided path, without any validation. This allows setting values in slices at any provided index, which grows the target array up to the requested index, the index is currently capped at max uint32 (4294967295) given how indexes are parsed,  but that is still an unnecessarily large value. If callers are not validating paths' indexes on their own, which most probably are not going to do, given that the input is parsed directly in the SetValue method, this could allow users to consume arbitrary amounts of memory. Applications that do not use the `Paved` type's `SetValue` method are not affected. This issue has been addressed in versions 0.16.1 and 0.19.2. Users are advised to upgrade. Users unable to upgrade can parse and validate the path before passing it to the `SetValue` method of the `Paved` type, constraining the index size as deemed appropriate.","status":"published","published":"2023-03-09T21:15:11.72Z","modified":"2026-06-17T05:45:18.3Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"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":"primary"}],"cwes":["CWE-20","CWE-400"],"updated_at":"2026-11-02T14:07:48.342507Z"}],"osv":[{"id":"CVE-2023-27483","title":"fieldpath's Paved.SetValue allows growing arrays up to arbitrary sizes in crossplane-runtime","description":"crossplane-runtime is a set of go libraries used to build Kubernetes controllers in Crossplane and its related stacks. An out of memory panic vulnerability has been discovered in affected versions. Applications that use the `Paved` type's `SetValue` method with user provided input without proper validation might use excessive amounts of memory and cause an out of memory panic. In the fieldpath package, the Paved.SetValue method sets a value on the Paved object according to the provided path, without any validation. This allows setting values in slices at any provided index, which grows the target array up to the requested index, the index is currently capped at max uint32 (4294967295) given how indexes are parsed,  but that is still an unnecessarily large value. If callers are not validating paths' indexes on their own, which most probably are not going to do, given that the input is parsed directly in the SetValue method, this could allow users to consume arbitrary amounts of memory. Applications that do not use the `Paved` type's `SetValue` method are not affected. This issue has been addressed in versions 0.16.1 and 0.19.2. Users are advised to upgrade. Users unable to upgrade can parse and validate the path before passing it to the `SetValue` method of the `Paved` type, constraining the index size as deemed appropriate.","status":"published","published":"2023-03-09T20:18:31.955Z","modified":"2026-10-28T02:30:25.483156205Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20","CWE-400"],"updated_at":"2026-11-02T15:44:31.135751Z"},{"id":"GHSA-vfvj-3m3g-m532","title":"fieldpath's Paved.SetValue allows growing arrays up to arbitrary sizes in crossplane-runtime","description":"### Summary\n\nFuzz testing on `crossplane/crossplane`, by Ada Logics and sponsored by the CNCF, identified input to a function in the `fieldpath` package that can cause an out of memory panic. Applications that use the `Paved` type's `SetValue` method with user provided input without proper validation might use excessive amounts of memory and cause an out of memory panic.\n\n### Details\n\nIn the `fieldpath` package, the `SetValue` method of the `Paved` type sets a value on the inner object according to the provided path, without validating it first. This allows setting values in slices at any specific index and the code will grow the target array up to the required size. The index is currently capped at max uint32 (4294967295) given how indexes are parsed,  but that is still an unnecessarily large value.\n\n### Workaround\n\nUsers can parse and validate the path before passing it to the `SetValue` method of the `Paved` type, constraining the index size as deemed appropriate.\n\n### Credits\n\nDisclosed by Ada Logics in a fuzzing audit sponsored by CNCF.","status":"published","published":"2023-03-13T20:53:50Z","modified":"2026-09-10T03:49:56.89233396Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20","CWE-400"],"updated_at":"2026-11-02T15:46:57.348035Z"},{"id":"GO-2023-1623","title":"Out-of-memory panic in github.com/crossplane/crossplane-runtime","description":"An out of memory panic vulnerability exists in the crossplane-runtime libraries.\n\nApplications that use the Paved type's SetValue method with user-provided input that is not properly validated might use excessive amounts of memory and cause an out of memory panic.\n\nIn the fieldpath package, the Paved.SetValue method sets a value on the Paved object according to the provided path, without any validation. This allows setting values in slices at any provided index, which grows the target array up to the requested index. The index is currently capped at max uint32 (4294967295), a large value. If callers do not validate paths' indexes on their own, this could allow users to consume arbitrary amounts of memory.\n\nApplications that do not use the Paved type's SetValue method are not affected.\n\nUsers unable to upgrade can work around this issue by parsing and validating the path before passing it to the SetValue method of the Paved type, constraining the index size as deemed appropriate.","status":"published","published":"2023-03-13T19:39:57Z","modified":"2024-05-20T16:03:47Z","updated_at":"2026-11-02T15:47:01.185262Z"}]}}