CVE-2025-48384
Git Link Following Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 15 September 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. When reading a config value, Git strips any trailing carriage return and line feed (CRLF). When writing a config entry, values with a trailing CR are not quoted, causing the CR to be lost when the config is later read. When initializing a submodule, if the submodule path contains a trailing CR, the altered path is read resulting in the submodule being checked out to an incorrect location. If a symlink exists that points the altered path to the submodule hooks directory, and the submodule contains an executable post-checkout hook, the script may be unintentionally executed after checkout. This vulnerability is fixed in v2.43.7, v2.44.4, v2.45.4, v2.46.4, v2.47.3, v2.48.2, v2.49.1, and v2.50.1.
- CVSS 3.1
- 8.0 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 4.11% probability · 90th percentile
- CISA KEV
- Listed 25 August 2025 · due 15 September 2025
- Weakness
- CWE-59, CWE-436
- Affected
- git-scm/git · debian/debian linux · apple/xcode
- Source
- security-advisories@github.com
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://github.com/git/git/security/advisories/GHSA-vwqx-4fm8-6qc9 ; https://access.redhat.com/errata/RHSA-2025:13933 ; https://alas.aws.amazon.com/AL2/ALAS2-2025-2941.html ; https://linux.oracle.com/errata/ELSA-2025-11534.html ; https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48384 ; https://nvd.nist.gov/vuln/detail/CVE-2025-48384
References
- https://github.com/git/git/security/advisories/GHSA-vwqx-4fm8-6qc9Vendor Advisory
- http://seclists.org/fulldisclosure/2025/Sep/60Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2025/07/08/4Mailing List
- https://lists.debian.org/debian-lts-announce/2025/10/msg00003.htmlMailing List, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-48384US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.