---
id: "CVE-2026-123533"
page: "https://infrastack.ai/live/CVE-2026-123533"
kind: "vulnerability"
aliases: ["CVE-2026-123533"]
title: "gitoxide: crafted commit-graph file crashes gix-commitgraph parser"
severity: "medium"
cvss: 6.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["git-tooling", "gitoxide", "gix-commitgraph", "package", "rust"]
not_affected_if: ["git-cli-only", "trusted-repos-only"]
published_at: "2026-11-08T02:16:43+00:00"
first_seen_at: "2026-11-08T02:21:10+00:00"
updated_at: "2026-11-08T02:24:48+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123533", "first_seen_at": "2026-11-08T02:21:10+00:00"}]
exploit_sources: []
---

# gitoxide: crafted commit-graph file crashes gix-commitgraph parser

Link for people: https://infrastack.ai/live/CVE-2026-123533 (this .md is for agents)

gix-commitgraph, the commit-graph parser in the gitoxide Rust Git library, does not validate parent positions or EDGE chunk alignment. A crafted .git/objects/info/commit-graph file makes gix commands and applications embedding gix panic and abort, which denies service.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the gitoxide version with `gix --version` or the `gix-commitgraph` version in Cargo.lock
- Search Cargo.lock for `gix-commitgraph` and `gitoxide` entries below `0.42.0` and `0.61.0`

## Fix

- `gix-commitgraph` `0.42.0`
- `gitoxide` `0.61.0`

## Timeline

- 2026-11-08T02:21:10+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-123533

## Documents

- [advisory] Vendor advisory: github.com https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-989c-xj77-266r
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/gitoxide-before-0.42.0-denial-of-service-via-crafted-commit-graph-file

## From the sources

gix-commitgraph before 0.42.0, as used in gitoxide before 0.61.0, contains a denial of service vulnerability because its commit-graph parser does not validate parent graph positions against the declared commit count or check the EDGE chunk length for 4-byte alignment. Attackers can supply a repository containing a crafted .git/objects/info/commit-graph file to trigger panics that abort gix merge-base, gix blame, and applications embedding gix.

---

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