Isomorphic Git
Monthly
Prototype pollution in isomorphic-git before 1.42.0 allows an operator of a malicious Git server to pollute Object.prototype by advertising crafted ref names containing '__proto__' path segments during ref negotiation, enabling credential theft when the victim's onAuth callback is triggered. The getRemoteInfo function fails to sanitize ref path components before using them as property keys on JavaScript objects, so a ref such as '__proto__/corsProxy' causes all subsequent network operations within the affected isomorphic-git instance to route through an attacker-controlled proxy. No public exploit or CISA KEV listing has been identified at time of analysis; the fix is confirmed in v1.42.0 released 2026-09-10.
isomorphic-git before 1.8.2 allows Directory Traversal via a crafted repository. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Prototype pollution in isomorphic-git before 1.42.0 allows an operator of a malicious Git server to pollute Object.prototype by advertising crafted ref names containing '__proto__' path segments during ref negotiation, enabling credential theft when the victim's onAuth callback is triggered. The getRemoteInfo function fails to sanitize ref path components before using them as property keys on JavaScript objects, so a ref such as '__proto__/corsProxy' causes all subsequent network operations within the affected isomorphic-git instance to route through an attacker-controlled proxy. No public exploit or CISA KEV listing has been identified at time of analysis; the fix is confirmed in v1.42.0 released 2026-09-10.
isomorphic-git before 1.8.2 allows Directory Traversal via a crafted repository. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.