CVE-2025-4435
Aliases:DEBIAN-CVE-2025-4435CGA-3xwx-5fgx-c58mCGA-gch4-rp2h-27fv
Advisory lineage Upstream: 0 Downstream: 28
Deferred
Published: 03 Jun 2025, 12:59
Last modified:31 Jul 2026, 14:02
Vulnerability Summary
Overall Risk (default)
medium
30/100 CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
0.59% LOW
1% probability +0.51%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
03 Jun 2025, 12:59
Published
Vulnerability first disclosed
31 Jul 2026, 14:02
Last Modified
Vulnerability information updated
Description
When using a TarFile.errorlevel = 0 and 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 = 0 in affected versions is that the member would still be extracted and not skipped.
CVSS Metrics
- v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Trends
Current EPSS score: 0.59%• Percentile: 47%
Techniques & Countermeasures
- CWE-682•Incorrect Calculation
The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
Affected Systems
- chainguard•python-3.13
< 3.13.4-r0
- wolfi•python-3.13
< 3.13.4-r0
- debian•pypy3
all | < 7.3.20+dfsg-2
- debian•python3.13
< 3.13.4-1 | < 3.13.4-1
- python software foundation•cpython
< 3.10.18 | < 3.9.23 | ≥ 3.10.0, < 3.10.18 | ≥ 3.11.0, < 3.11.13 | ≥ 3.12.0, < 3.12.11 | ≥ 3.13.0, < 3.13.4 | ≥ 3.14.0a1, < 3.14.0b3
References (15)
- 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/
- https://github.com/python/cpython/commit/3612d8f51741b11f36f8fb0494d79086bac9390a
- https://github.com/python/cpython/commit/9e0ac76d96cf80b49055f6d6b9a6763fb9215c2a
- https://github.com/python/cpython/commit/19de092debb3d7e832e5672cc2f7b788d35951da
- https://github.com/python/cpython/commit/aa9eb5f757ceff461e6e996f12c89e5d9b583b01
- https://github.com/python/cpython/commit/28463dba112af719df1e8b0391c46787ad756dd9
- https://github.com/python/cpython/commit/4633f3f497b1ff70e4a35b6fe2c907cbe2d4cb2e
- https://github.com/python/cpython/commit/9c1110ef6652687d7c55f590f909720eddde965a
- https://github.com/python/cpython/commit/dd8f187d0746da151e0025c51680979ac5b4cfb1
- https://security-tracker.debian.org/tracker/CVE-2025-4435
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/4xxx/CVE-2025-4435.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-4435
- https://github.com/python/cpython