CVE-2026-33762

unknown

Published 2026-03-30 · Modified 2026-04-08

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CVSS v3

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CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

go-git is an extensible git implementation library written in pure Go. Prior to version 5.17.1, go-git’s index decoder for format version 4 fails to validate the path name prefix length before applying it to the previously decoded path name. A maliciously crafted index file can trigger an out-of-bounds slice operation, resulting in a runtime panic during normal index parsing. This issue only affects Git index format version 4. Earlier formats (go-git supports only v2 and v3) are not vulnerable to this issue. This issue has been patched in version 5.17.1.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Debian Mixed 4 releases

Version	Status	Fixed in
trixie	Affected	—
sid	Fixed	`5.17.1-1`
forky	Fixed	`5.17.1-1`
bookworm	Affected	—

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/go-git/go-git/v5	`<5.17.1`	`5.17.1`
Go	github.com/go-git/go-git
Go	github.com/go-git/go-git/v4

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.