CVE-2026-87818CWE-88

CVE-2026-87818

Medium · published September 9, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
34.3
In the wild
Unconfirmed
What it is

GitPython 3.1.59 fails to restrict the --no-index option in the high-level diff API, allowing attackers to read arbitrary filesystem paths as repository operands. Attackers can combine --no-index with -I/--ignore-matching-lines to create a content-dependent Boolean oracle, repeatedly querying local files to recover single-line secrets through distinguishable success or error responses.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00412 · 34.3th percentile
Weakness
CWE-88 · Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Published
2026-09-09T16:17Z
Affected products (1)
ProductVersionsFixed in
gitpython_project/gitpython< 3.1.603.1.60
References (2)
https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-whh4-5q6c-9v3x · [email protected]https://www.vulncheck.com/advisories/gitpython-3.1.59-local-file-content-oracle-via-no-index · [email protected]
EPSS history
Timeline
  • 11 SEP 03:19Z
    EPSS moved — → 0%
    epss
  • 09 SEP 11:21Z
    GitPython 3.1.59 Local File Content Oracle via --no-index
    cvelistv5