CVE-2025-4435

When using a TarFile.errorlevel = 0and extracting with a filter the documented behavior is that any filtered members would be skipped and not extracted. However the actual behavior of TarFile.errorlevel = 0in affected versions is that the member would still be extracted and not skipped.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
PSFCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA-ADPADP
---
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 21%
Debian logo
Debian Releases
Debian Product
Codename
jython
bullseye
2.7.2+repack1-3
not-affected
bookworm
2.7.3+repack1-1
no-dsa
trixie
2.7.3+repack1-1
no-dsa
forky
2.7.3+repack1-1
fixed
sid
2.7.3+repack1-1
fixed
pypy3
bullseye
7.3.5+dfsg-2+deb11u2
not-affected
bookworm
no-dsa
trixie
no-dsa
bullseye (security)
7.3.5+dfsg-2+deb11u4
fixed
forky
vulnerable
sid
vulnerable
python2.7
bullseye
2.7.18-8+deb11u1
fixed
bookworm
no-dsa
trixie
no-dsa
python3.11
bookworm
3.11.2-6+deb12u6
no-dsa
trixie
no-dsa
bullseye
not-affected
bookworm (security)
3.11.2-6+deb12u3
fixed
python3.13
trixie
3.13.5-2
no-dsa
bookworm
no-dsa
bullseye
not-affected
forky
3.13.7-1
fixed
sid
3.13.7-1
fixed
python3.9
bullseye
3.9.2-1
not-affected
bookworm
no-dsa
trixie
no-dsa
bullseye (security)
3.9.2-1+deb11u3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
Common Weakness Enumeration
References
https://github.com/python/cpython/commit/19de092debb3d7e832e5672cc2f7b788d35951da
https://github.com/python/cpython/commit/28463dba112af719df1e8b0391c46787ad756dd9
https://github.com/python/cpython/commit/3612d8f51741b11f36f8fb0494d79086bac9390a
https://github.com/python/cpython/commit/4633f3f497b1ff70e4a35b6fe2c907cbe2d4cb2e
https://github.com/python/cpython/commit/9c1110ef6652687d7c55f590f909720eddde965a
https://github.com/python/cpython/commit/9e0ac76d96cf80b49055f6d6b9a6763fb9215c2a
https://github.com/python/cpython/commit/aa9eb5f757ceff461e6e996f12c89e5d9b583b01
https://github.com/python/cpython/commit/dd8f187d0746da151e0025c51680979ac5b4cfb1
https://github.com/python/cpython/issues/135034
https://github.com/python/cpython/pull/135037
https://mail.python.org/archives/list/security-announce@python.org/thread/MAXIJJCUUMCL7ATZNDVEGGHUMQMUUKLG/