---
title: "CVE-2022-23521: gitattributes parsing integer overflow… | CubePath"
description: "Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined…"
language: en
source: https://cubepath.com/security/cve/CVE-2022-23521
---

# CVE-2022-23521: gitattributes parsing integer overflow… | CubePath

## Description

Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined by adding a \`.gitattributes\` file to the repository, which contains a set of file patterns and the attributes that should be set for paths matching this pattern. When parsing gitattributes, multiple integer overflows can occur when there is a huge number of path patterns, a huge number of attributes for a single pattern, or when the declared attribute names are huge. These overflows can be triggered via a crafted \`.gitattributes\` file that may be part of the commit history. Git silently splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index or both. This integer overflow can result in arbitrary heap reads and writes, which may result in remote code execution. The problem has been patched in the versions published on 2023-01-17, going back to v2.30.7\. Users are advised to upgrade. There are no known workarounds for this issue.

Official description from the CVE record, published by GitHub\_M. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2022-23521)

## Key data

### CVSS 3.1 Critical 9.8

Score published by GitHub\_M in the CVE record.

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

| Metric                 | Value     | What it means                                                                       |
| ---------------------- | --------- | ----------------------------------------------------------------------------------- |
| Attack vector          | Network   | The vulnerable component can be reached over a network, possibly from the Internet. |
| Attack complexity      | Low       | No special conditions are needed. The attack can be repeated at will.               |
| Privileges required    | None      | No account or privileges are needed.                                                |
| User interaction       | None      | No action from any user is needed.                                                  |
| Scope                  | Unchanged | The impact stays within the vulnerable component.                                   |
| Confidentiality impact | High      | Serious or total effect on the secrecy of data.                                     |
| Integrity impact       | High      | Serious or total effect on the trustworthiness of data.                             |
| Availability impact    | High      | Serious or total effect on availability.                                            |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.56334 (56.3% probability)

Percentile

99.1%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA assessment as of Oct 15, 2024

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Automatable

yes

Technical impact

total

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-190](https://cwe.mitre.org/data/definitions/190.html) Integer Overflow or Wraparound

## Affected products

Products listed in the CVE record, as the CNA published them.

- git

  - affected: < 2.30.7
  - affected: >= 2.31.0, < 2.31.6
  - affected: >= 2.32.0, < 2.32.5
  - affected: >= 2.33.0, < 2.33.6
  - affected: >= 2.34.0, < 2.34.6
  - affected: >= 2.35.0, < 2.35.6
  - affected: >= 2.36.0, < 2.36.4
  - affected: >= 2.37.0, < 2.37.5
  - affected: >= 2.38.0, < 2.38.3
  - affected: = 2.39.0

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [github.com/git/git/security/advisories/GHSA-c738-c5qq-xg89](https://github.com/git/git/security/advisories/GHSA-c738-c5qq-xg89)
- [github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98c…](https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76)
- [security.gentoo.org/glsa/202312-15](https://security.gentoo.org/glsa/202312-15)

## Timeline

1. ID reserved Jan 19, 2022
2. Record published Jan 17, 2023
3. Record last updated Feb 13, 2025

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:05 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)