DEBIAN-CVE-2026-87818
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.
DEBIAN-CVE-2026-87818
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-87818
python-git
Source reference: /affected/0/package/name
- Affected versions
- 3.1.30-1
Source reference:
/affected/0/versions3.1.30-1+deb12u2Source reference:
/affected/0/versions3.1.36-1Source reference:
/affected/0/versions3.1.37-1Source reference:
/affected/0/versions3.1.37-2Source reference:
/affected/0/versions3.1.37-3Source reference:
/affected/0/versions3.1.44-1Source reference:
/affected/0/versions3.1.45-1Source reference:
/affected/0/versions3.1.46-1Source reference:
/affected/0/versions3.1.50-1Source reference:
/affected/0/versions3.1.61-1Source reference:
/affected/0/versions3.1.62-1Source reference:
/affected/0/versions3.1.62-2Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
python-git
Source reference: /affected/1/package/name
- Affected versions
- 3.1.44-1
Source reference:
/affected/1/versions3.1.45-1Source reference:
/affected/1/versions3.1.46-1Source reference:
/affected/1/versions3.1.50-1Source reference:
/affected/1/versions3.1.61-1Source reference:
/affected/1/versions3.1.62-1Source reference:
/affected/1/versions3.1.62-2Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
python-git
Source reference: /affected/2/package/name
- Affected versions
- 3.1.44-1
Source reference:
/affected/2/versions3.1.45-1Source reference:
/affected/2/versions3.1.46-1Source reference:
/affected/2/versions3.1.50-1Source reference:
/affected/2/versions - Fixed versions
- 3.1.61-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/debian/python-git?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.1.30-1",
"3.1.30-1+deb12u2",
"3.1.36-1",
"3.1.37-1",
"3.1.37-2",
"3.1.37-3",
"3.1.44-1",
"3.1.45-1",
"3.1.46-1",
"3.1.50-1",
"3.1.61-1",
"3.1.62-1",
"3.1.62-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87818.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/debian/python-git?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.1.44-1",
"3.1.45-1",
"3.1.46-1",
"3.1.50-1",
"3.1.61-1",
"3.1.62-1",
"3.1.62-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87818.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.61-1"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/debian/python-git?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.1.44-1",
"3.1.45-1",
"3.1.46-1",
"3.1.50-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87818.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58520 · Revision 1
- Added to Heist Feed
- Publisher date