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TI-2025-03954 Aliases CVE-2025-4435GHSA-p72v-37h5-753v

Tarfile extracts filtered members when errorlevel=0

Priority MEDIUM 40CWE-682Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00616 49th percentileScored 2026-11-07
Fix Fixed CPython (Python Software Foundation): 3.9.23, 3.10.18, 3.11.13 +3Red Hat: 14 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Python Software FoundationCPythonbefore 3.9.23; 3.10.0 to before 3.10.18; 3.11.0 to before 3.11.13; 3.12.0 to before 3.12.11; 3.13.0 to before 3.13.4; 3.14.0a1 to before 3.14.0b33.9.23, 3.10.18, 3.11.13, 3.12.11, 3.13.4, 3.14.0b3Patch availableCNA
  • CPython VendorPython Software Foundation Affected before 3.9.23; 3.10.0 to before 3.10.18; 3.11.0 to before 3.11.13; 3.12.0 to before 3.12.11; 3.13.0 to before 3.13.4; 3.14.0a1 to before 3.14.0b3 Fixed in 3.9.23, 3.10.18, 3.11.13, 3.12.11, 3.13.4, 3.14.0b3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*——python-pillow
  • cpe:2.3:a:python:python:*:*:*:*:*:*:*:* Versions — — ·python-pillow

Remediation

  • Fix · CNA CPython (Python Software Foundation) Fixed in 3.9.23, 3.10.18, 3.11.13, 3.12.11, 3.13.4, 3.14.0b3

Red Hat 14 advisories

  • RHSA-2025:23530 Released 2025-12-18 · Red Hat rating Important
    python39:3.9 security update
    • Red Hat Enterprise Linux AppStream (v. 8) PyYAML-5.4.1-1.module+el8.9.0+19644+d68f775d.src::python39:3.9, mod_wsgi-4.7.1-7.module+el8.10.0+23075+0aa18782.1.src::python39:3.9, numpy-1.19.4-3.module+el8.9.0+19644+d68f775d.src::python39:3.9 +47
    • Red Hat Enterprise Linux CRB (v. 8) Cython-0.29.21-5.module+el8.9.0+19644+d68f775d.src::python39-devel:3.9, pybind11-2.7.1-1.module+el8.9.0+19644+d68f775d.src::python39-devel:3.9, pytest-6.0.2-2.module+el8.9.0+19644+d68f775d.src::python39-devel:3.9 +33
  • RHSA-2025:13267 Released 2025-08-06 · Red Hat rating Important
    A Subscription Management tool for finding and reporting Red Hat product usage
    • Red Hat Discovery 2 registry.redhat.io/discovery/discovery-server-rhel9
  • RHSA-2025:10602 Released 2025-07-08 · Red Hat rating Important
    python3 security update
    • Red Hat Enterprise Linux AppStream E4S (v.8.8) platform-python-3.6.8-51.el8_8.10, platform-python-debug-3.6.8-51.el8_8.10, platform-python-devel-3.6.8-51.el8_8.10 +3
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.8) platform-python-3.6.8-51.el8_8.10, platform-python-debug-3.6.8-51.el8_8.10, platform-python-devel-3.6.8-51.el8_8.10 +3
    • Red Hat Enterprise Linux AppStream TUS (v.8.8) platform-python-3.6.8-51.el8_8.10, platform-python-debug-3.6.8-51.el8_8.10, platform-python-devel-3.6.8-51.el8_8.10 +3
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) platform-python-3.6.8-51.el8_8.10, python3-3.6.8-51.el8_8.10, python3-libs-3.6.8-51.el8_8.10 +1
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.8) platform-python-3.6.8-51.el8_8.10, python3-3.6.8-51.el8_8.10, python3-libs-3.6.8-51.el8_8.10 +1
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) platform-python-3.6.8-51.el8_8.10, python3-3.6.8-51.el8_8.10, python3-libs-3.6.8-51.el8_8.10 +1
Show 11 more Red Hat advisories
  • RHSA-2025:10484 Released 2025-07-07 · Red Hat rating Important
    python3 security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) platform-python-3.6.8-47.el8_6.8, platform-python-debug-3.6.8-47.el8_6.8, platform-python-devel-3.6.8-47.el8_6.8 +3
    • Red Hat Enterprise Linux AppStream E4S (v.8.6) platform-python-3.6.8-47.el8_6.8, platform-python-debug-3.6.8-47.el8_6.8, platform-python-devel-3.6.8-47.el8_6.8 +3
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) platform-python-3.6.8-47.el8_6.8, platform-python-debug-3.6.8-47.el8_6.8, platform-python-devel-3.6.8-47.el8_6.8 +3
    • Red Hat Enterprise Linux AppStream TUS (v.8.6) platform-python-3.6.8-47.el8_6.8, platform-python-debug-3.6.8-47.el8_6.8, platform-python-devel-3.6.8-47.el8_6.8 +3
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) platform-python-3.6.8-47.el8_6.8, python3-3.6.8-47.el8_6.8, python3-libs-3.6.8-47.el8_6.8 +1
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) platform-python-3.6.8-47.el8_6.8, python3-3.6.8-47.el8_6.8, python3-libs-3.6.8-47.el8_6.8 +1
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) platform-python-3.6.8-47.el8_6.8, python3-3.6.8-47.el8_6.8, python3-libs-3.6.8-47.el8_6.8 +1
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) platform-python-3.6.8-47.el8_6.8, python3-3.6.8-47.el8_6.8, python3-libs-3.6.8-47.el8_6.8 +1
  • RHSA-2025:10399 Released 2025-07-07 · Red Hat rating Important
    python3.9 security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) python3-3.9.18-3.el9_4.8, python3-debug-3.9.18-3.el9_4.8, python3-idle-3.9.18-3.el9_4.8 +2
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) python-unversioned-command-3.9.18-3.el9_4.8, python3-devel-3.9.18-3.el9_4.8, python3-tkinter-3.9.18-3.el9_4.8
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) python3-3.9.18-3.el9_4.8, python3-libs-3.9.18-3.el9_4.8, python3.9-3.9.18-3.el9_4.8
  • RHSA-2025:10189 Released 2025-07-02 · Red Hat rating Important
    python3.12 security update
    • Red Hat Enterprise Linux AppStream (v. 9) python3.12-3.12.9-1.el9_6.1, python3.12-devel-3.12.9-1.el9_6.1, python3.12-libs-3.12.9-1.el9_6.1 +1
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) python3.12-3.12.9-1.el9_6.1, python3.12-debug-3.12.9-1.el9_6.1, python3.12-idle-3.12.9-1.el9_6.1 +2
  • RHSA-2025:10148 Released 2025-07-01 · Red Hat rating Important
    python3.11 security update
    • Red Hat Enterprise Linux AppStream (v. 9) python3.11-3.11.11-2.el9_6.1, python3.11-devel-3.11.11-2.el9_6.1, python3.11-libs-3.11.11-2.el9_6.1 +1
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) python3.11-3.11.11-2.el9_6.1, python3.11-debug-3.11.11-2.el9_6.1, python3.11-idle-3.11.11-2.el9_6.1 +2
  • RHSA-2025:10140 Released 2025-07-01 · Red Hat rating Important
    python3.12 security update
    • Red Hat Enterprise Linux AppStream (v. 10) python-unversioned-command-3.12.9-2.el10_0.2, python3-devel-3.12.9-2.el10_0.2, python3-tkinter-3.12.9-2.el10_0.2
    • Red Hat Enterprise Linux BaseOS (v. 10) python3-3.12.9-2.el10_0.2, python3-libs-3.12.9-2.el10_0.2, python3.12-3.12.9-2.el10_0.2
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) python3-debug-3.12.9-2.el10_0.2, python3-idle-3.12.9-2.el10_0.2, python3-test-3.12.9-2.el10_0.2
  • RHSA-2025:10136 Released 2025-07-01 · Red Hat rating Important
    python3.9 security update
    • Red Hat Enterprise Linux AppStream (v. 9) python-unversioned-command-3.9.21-2.el9_6.1, python3-devel-3.9.21-2.el9_6.1, python3-tkinter-3.9.21-2.el9_6.1
    • Red Hat Enterprise Linux BaseOS (v. 9) python3-3.9.21-2.el9_6.1, python3-libs-3.9.21-2.el9_6.1, python3.9-3.9.21-2.el9_6.1
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) python3-3.9.21-2.el9_6.1, python3-debug-3.9.21-2.el9_6.1, python3-idle-3.9.21-2.el9_6.1 +2
  • RHSA-2025:10128 Released 2025-07-01 · Red Hat rating Important
    python3 security update
    • Red Hat Enterprise Linux AppStream (v. 8) platform-python-3.6.8-70.el8_10, platform-python-debug-3.6.8-70.el8_10, platform-python-devel-3.6.8-70.el8_10 +3
    • Red Hat Enterprise Linux BaseOS (v. 8) platform-python-3.6.8-70.el8_10, python3-3.6.8-70.el8_10, python3-libs-3.6.8-70.el8_10 +1
  • RHSA-2025:10031 Released 2025-07-01 · Red Hat rating Important
    python3.12 security update
    • Red Hat Enterprise Linux AppStream (v. 8) python3.12-3.12.11-1.el8_10, python3.12-devel-3.12.11-1.el8_10, python3.12-libs-3.12.11-1.el8_10 +2
    • Red Hat Enterprise Linux CRB (v. 8) python3.12-3.12.11-1.el8_10, python3.12-debug-3.12.11-1.el8_10, python3.12-idle-3.12.11-1.el8_10 +2
  • RHSA-2025:10026 Released 2025-07-01 · Red Hat rating Important
    python3.11 security update
    • Red Hat Enterprise Linux AppStream (v. 8) python3.11-3.11.13-1.el8_10, python3.11-devel-3.11.13-1.el8_10, python3.11-libs-3.11.13-1.el8_10 +2
    • Red Hat Enterprise Linux CRB (v. 8) python3.11-3.11.13-1.el8_10, python3.11-debug-3.11.13-1.el8_10, python3.11-idle-3.11.13-1.el8_10 +2
  • RHSA-2025:10028 Released 2025-07-01 · Red Hat rating Important
    python3.12 security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) python3.12-3.12.1-4.el9_4.6, python3.12-debug-3.12.1-4.el9_4.6, python3.12-idle-3.12.1-4.el9_4.6 +2
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) python3.12-3.12.1-4.el9_4.6, python3.12-devel-3.12.1-4.el9_4.6, python3.12-libs-3.12.1-4.el9_4.6 +1
  • RHSA-2025:9918 Released 2025-06-30 · Red Hat rating Important
    python3.11 security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) python3.11-3.11.7-1.el9_4.8, python3.11-debug-3.11.7-1.el9_4.8, python3.11-idle-3.11.7-1.el9_4.8 +2
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) python3.11-3.11.7-1.el9_4.8, python3.11-devel-3.11.7-1.el9_4.8, python3.11-libs-3.11.7-1.el9_4.8 +1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Python Software Foundation CPython — mail.python.org/archives/list/[email protected]/…

    5 records Highest priority Priority MEDIUM 5 MEDIUM

    Other records, highest priority first

    • TI-2024-11791 Bypass extraction filter to modify file metadata outside extraction directoryPriority MEDIUM 63
    • TI-2025-04033 Arbitrary writes via tarfile realpath overflowPriority MEDIUM 51
    • TI-2025-03675 Bypassing extraction filter to create symlinks to arbitrary targets outside extraction directoryPriority MEDIUM 42
    Show all 5 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2025:10028, RHSA-2025:10399, RHSA-2025:9918
Red Hat Discovery 2Fixed RHSA-2025:13267
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:10140
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2025:10026, RHSA-2025:10031, RHSA-2025:10128, RHSA-2025:23530
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:10136, RHSA-2025:10148, RHSA-2025:10189
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2025:10484
Red Hat Enterprise Linux AppStream E4S (v.8.6)Fixed RHSA-2025:10484
Red Hat Enterprise Linux AppStream E4S (v.8.8)Fixed RHSA-2025:10602
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:10028, RHSA-2025:10399, RHSA-2025:9918
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Fixed RHSA-2025:10484
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.8)Fixed RHSA-2025:10602
Red Hat Enterprise Linux AppStream TUS (v.8.6)Fixed RHSA-2025:10484
Red Hat Enterprise Linux AppStream TUS (v.8.8)Fixed RHSA-2025:10602
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:10140
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:10128
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:10136
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2025:10484
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2025:10484
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2025:10602
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:10399
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)Fixed RHSA-2025:10484
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.8)Fixed RHSA-2025:10602
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2025:10484
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2025:10602
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:10026, RHSA-2025:10031, RHSA-2025:23530
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:10140
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:10136, RHSA-2025:10148, RHSA-2025:10189
Not affected: 3 products
  • Red Hat Discovery 2
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux AI (RHEL AI)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-4435
  2. 2026-10-03 Alias added: GHSA-p72v-37h5-753v

References

Patch 9

Advisory 1

Other 1

  • TI-2024-07037 Quadratic complexity parsing cookies with backslashes CVSS 3.1HIGH 7.5
  • TI-2024-11791 Bypass extraction filter to modify file metadata outside extraction directory CVSS 3.1MEDIUM 5.3
  • TI-2024-00411 Quoted zip-bomb protection for zipfile CVSS 3.1MEDIUM 6.2
  • TI-2026-13296 `HTTPPasswordMgr` can send saved HTTPS credentials via HTTP because of incorrect scheme matching CVSS 4.0MEDIUM 6.0
  • TI-2024-06422 Email header injection due to unquoted newlines CVSS 3.1MEDIUM 5.5
  • TI-2026-04606 Possible to hijack modules in current working directory CVSS 4.0MEDIUM 5.6
See all 83 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences