High severity · published Sep 9, 2026
CVE-2026-87819
GitPython before 3.1.60 Denial of Service via ReDoS
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
GitPython before 3.1.60 contains a regular expression denial of service vulnerability in Actor.name_email_regex that processes commit author and committer fields. Attackers can craft a commit object with a malformed author field containing an unterminated angle bracket to cause quadratic backtracking, exhausting CPU resources for over two minutes per commit access.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitPython · gitpython-developers
before 3.1.60 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-87819
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-87819
vendor-advisory
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-g5vv-9gxw-82hx
third-party-advisory
https://www.vulncheck.com/advisories/gitpython-before-3.1.60-denial-of-service-via-redos
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