{"id":"CVE-2026-61834","summary":"scim-patch: Mutation of Inherited Built-in Method Objects","details":"scim-patch is a library for applying SCIM patch operations. Prior to 0.9.2, navigate() reads inherited properties and assign() uses prototype-chain membership checks while resolving attacker-controlled SCIM PATCH paths. A path or one of the dotted value keys beginning with an inherited property such as toString can therefore traverse into a shared built-in function object and add attacker-controlled properties, causing process-global mutation that may affect application logic reading inherited-method properties. This issue is fixed in version 0.9.2.","aliases":["GHSA-2mhw-wcx5-v3xj"],"modified":"2026-09-25T03:48:35.310321840Z","published":"2026-09-23T14:02:01.131Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-1321","CWE-915"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61834.json"},"references":[{"type":"WEB","url":"https://github.com/thomaspoignant/scim-patch/releases/tag/v0.9.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61834.json"},{"type":"ADVISORY","url":"https://github.com/thomaspoignant/scim-patch/security/advisories/GHSA-2mhw-wcx5-v3xj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61834"},{"type":"FIX","url":"https://github.com/thomaspoignant/scim-patch/commit/c86474f7a9b16191d939f59ba94eca6c6e63044b"},{"type":"FIX","url":"https://github.com/thomaspoignant/scim-patch/pull/1127"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/thomaspoignant/scim-patch","events":[{"introduced":"0"},{"fixed":"c86474f7a9b16191d939f59ba94eca6c6e63044b"},{"fixed":"2d4c17d6001d812ea7213ea09e4c18b27851add2"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.9.2"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v0.9.1","v0.9.0","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.1","v0.7.0","v0.6.7","v0.6.6","v0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.10","v0.5.9","v0.5.8","v0.5.7","v0.5.6","v0.5.5","v0.5.4","v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.5","v0.4.4","v0.4.3","v0.4.2","v0.4.1","v0.4.0","v0.3.1","v0.3.0","v0.2.7","v0.2.6","v0.2.5","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.2.0","v0.1.4","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61834.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}