Allocation of Resources Without Limits or Throttling Affecting github.com/go-git/go-git/v5/plumbing/format/packfile package, versions <5.19.1
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- published31 May 2026
- disclosed29 May 2026
- creditN0zoM1z0, AyushParkara, kodareef5
Introduced: 29 May 2026
CVE NOT AVAILABLE CWE-770 Â (opens in a new tab)How to fix?
Upgrade github.com/go-git/go-git/v5/plumbing/format/packfile to version 5.19.1 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the parsing of maliciously crafted Git repository data, such as .pack, .idx, or loose objects. An attacker can cause the application to panic by providing a payload that exceeds the declared size of a slice for isCopyFromDelta(), or consume excessive resources by sending an unlimited stream of calls to isCopyFromDelta() or a stream of calls with excessively large targetSz values (i.e. amplification).
Note: This is only exploitable if the attacker can alter read-only files in the local repository's .git/objects/pack/ directory or if the user interacts with a malicious remote server.