Improper Validation of Array Index Affecting github.com/go-git/go-git/v5/plumbing/format/index package, versions >=4.0.0-rc2 <5.17.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMGOGITGOGITV5PLUMBINGFORMATINDEX-15855246
- published31 Mar 2026
- disclosed30 Mar 2026
- creditkq5y
Introduced: 30 Mar 2026
CVE-2026-33762 Â (opens in a new tab)How to fix?
Upgrade github.com/go-git/go-git/v5/plumbing/format/index to version 5.17.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Validation of Array Index through improper validation in the index decoding for version 4 files. An attacker with write access to the .git directory to modify or inject the index file can cause a panic and terminate the process by supplying a maliciously crafted .git/index file that triggers an out-of-bounds slice operation during index parsing.