python-git: GitPython 3.1.59 fails to restrict the --no-index option in the high-level diff API, allowing attackers to read arbit...
CVE-2026-87818 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-87818, released September 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-GitPython · opensuse-leap 16.0 | 3.1.44-160000.4.1 | OPENSUSE-SU-2026:21874-1 | Sep 18, 2026 |
| python-GitPython · sles 15.6 | 3.1.34.1693646983.2a2ae77-150400.9.11.1 | SUSE-SU-2026:4191-1 | Sep 15, 2026 |
| python-GitPython · sles 15.7 | 3.1.34.1693646983.2a2ae77-150400.9.11.1 | SUSE-SU-2026:4191-1 | Sep 15, 2026 |
| python-git · Debian 12.15 (bookworm) | 3.1.30-1+deb12u3 | DEBIAN-CVE-2026-87818 | Sep 10, 2026 |
| python-git · Debian 13.5 (trixie) | 3.1.44-1+deb13u1 | DEBIAN-CVE-2026-87818 | Sep 10, 2026 |
| python-git · Debian 14 | 3.1.61-1 | DEBIAN-CVE-2026-87818 | Sep 10, 2026 |
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