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TI-2025-07587 Aliases CVE-2025-8291GHSA-49g5-f6qw-8mm7

ZIP64 End of Central Directory (EOCD) Locator record offset not checked

Priority MEDIUM 53CWE-1285Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Partial Red Hat: 20 fixed, 5 without a fix

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

Summary

The 'zipfile' module would not check the validity of the ZIP64 End of Central Directory (EOCD) Locator record offset value would not be used to locate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be assumed to be the previous record in the ZIP archive. This could be abused to create ZIP archives that are handled differently by the 'zipfile' module compared to other ZIP implementations. Remediation maintains this behavior, but checks that the offset specified in the ZIP64 EOCD Locator record matches the expected value.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00466 40th percentileScored 2026-11-07
Fix Partial CPython (Python Software Foundation): 3.9.24, 3.10.19, 3.11.14 +3Red Hat: 16 advisoriesRed Hat: 20 fixed, 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
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 3.9.24; 3.10.0 to before 3.10.19; 3.11.0 to before 3.11.14; 3.12.0 to before 3.12.12; 3.13.0 to before 3.13.10; 3.14.0 to before 3.14.13.9.24, 3.10.19, 3.11.14, 3.12.12, 3.13.10, 3.14.1Patch availableCNA
  • CPython VendorPython Software Foundation Affected before 3.9.24; 3.10.0 to before 3.10.19; 3.11.0 to before 3.11.14; 3.12.0 to before 3.12.12; 3.13.0 to before 3.13.10; 3.14.0 to before 3.14.1 Fixed in 3.9.24, 3.10.19, 3.11.14, 3.12.12, 3.13.10, 3.14.1 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 3.9.24, 3.10.19, 3.11.14, 3.12.12, 3.13.10, 3.14.1

Red Hat 16 advisories

  • RHSA-2026:8824 Released 2026-04-17 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images python3.12-3.12.13-3.hum1@aarch64, python3.12-3.12.13-3.hum1@src, python3.12-3.12.13-3.hum1@x86_64 +12
  • RHSA-2026:8822 Released 2026-04-17 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images python3.11-3.11.15-4.hum1@aarch64, python3.11-3.11.15-4.hum1@src, python3.11-3.11.15-4.hum1@x86_64 +12
  • RHSA-2026:7661 Released 2026-04-11 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images python-unversioned-command-3.14.4-1.hum1@noarch@public-hummingbird-aarch64-rpms, python-unversioned-command-3.14.4-1.hum1@noarch@public-hummingbird-x86_64-rpms, python3-3.14.4-1.hum1@aarch64 +28
Show 13 more Red Hat advisories
  • RHSA-2026:7443 Released 2026-04-10 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images python3.13-3.13.13-1.hum1@aarch64, python3.13-3.13.13-1.hum1@src, python3.13-3.13.13-1.hum1@x86_64 +16
  • RHSA-2026:1858 Released 2026-02-03 · Red Hat rating Important
    Red Hat Ceph Storage
    • Red Hat Ceph Storage 7 registry.redhat.io/rhceph/rhceph-7-rhel9
  • RHSA-2026:1652 Released 2026-02-02 · Red Hat rating Important
    Red Hat Ceph Storage
    • Red Hat Ceph Storage 8 registry.redhat.io/rhceph/rhceph-8-rhel9
  • RHSA-2026:0685 Released 2026-01-15 · Red Hat rating Moderate
    Red Hat Update Infrastructure 5 security update
    • Red Hat Update Infrastructure 5 registry.redhat.io/rhui5/cds-rhel9, registry.redhat.io/rhui5/haproxy-rhel9, registry.redhat.io/rhui5/installer-rhel9 +1
  • RHSA-2026:0414 Released 2026-01-08 · 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, registry.redhat.io/discovery/discovery-ui-rhel9
  • RHSA-2026:0355 Released 2026-01-08 · Red Hat rating Moderate
    python3.12 security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) python3.12-3.12.9-1.el9_6.3, python3.12-debug-3.12.9-1.el9_6.3, python3.12-idle-3.12.9-1.el9_6.3 +2
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) python3.12-3.12.9-1.el9_6.3, python3.12-devel-3.12.9-1.el9_6.3, python3.12-libs-3.12.9-1.el9_6.3 +1
  • RHSA-2026:0354 Released 2026-01-08 · Red Hat rating Moderate
    python3.12 security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) python3.12-3.12.1-4.el9_4.8, python3.12-debug-3.12.1-4.el9_4.8, python3.12-idle-3.12.1-4.el9_4.8 +2
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) python3.12-3.12.1-4.el9_4.8, python3.12-devel-3.12.1-4.el9_4.8, python3.12-libs-3.12.1-4.el9_4.8 +1
  • RHSA-2026:0353 Released 2026-01-08 · Red Hat rating Moderate
    python3.12 security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) python-unversioned-command-3.12.9-2.el10_0.4, python3-devel-3.12.9-2.el10_0.4, python3-tkinter-3.12.9-2.el10_0.4
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) python3-3.12.9-2.el10_0.4, python3-libs-3.12.9-2.el10_0.4, python3.12-3.12.9-2.el10_0.4
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) python3-debug-3.12.9-2.el10_0.4, python3-idle-3.12.9-2.el10_0.4, python3-test-3.12.9-2.el10_0.4
  • RHSA-2026:0123 Released 2026-01-06 · Red Hat rating Moderate
    python3.12 security update
    • Red Hat Enterprise Linux AppStream (v. 8) python3.12-3.12.12-1.el8_10, python3.12-devel-3.12.12-1.el8_10, python3.12-libs-3.12.12-1.el8_10 +2
    • Red Hat Enterprise Linux CRB (v. 8) python3.12-3.12.12-1.el8_10, python3.12-debug-3.12.12-1.el8_10, python3.12-idle-3.12.12-1.el8_10 +2
  • RHSA-2025:23940 Released 2025-12-22 · Red Hat rating Moderate
    python3.12 security update
    • Red Hat Enterprise Linux AppStream (v. 10) python-unversioned-command-3.12.12-1.el10_1, python3-devel-3.12.12-1.el10_1, python3-tkinter-3.12.12-1.el10_1
    • Red Hat Enterprise Linux BaseOS (v. 10) python3-3.12.12-1.el10_1, python3-libs-3.12.12-1.el10_1, python3.12-3.12.12-1.el10_1
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) python3-debug-3.12.12-1.el10_1, python3-idle-3.12.12-1.el10_1, python3-test-3.12.12-1.el10_1
  • RHSA-2025:23342 Released 2025-12-18 · Red Hat rating Moderate
    python3.9 security update
    • Red Hat Enterprise Linux AppStream (v. 9) python-unversioned-command-3.9.25-2.el9_7, python3-devel-3.9.25-2.el9_7, python3-tkinter-3.9.25-2.el9_7
    • Red Hat Enterprise Linux BaseOS (v. 9) python3-3.9.25-2.el9_7, python3-libs-3.9.25-2.el9_7, python3.9-3.9.25-2.el9_7
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) python3-3.9.25-2.el9_7, python3-debug-3.9.25-2.el9_7, python3-idle-3.9.25-2.el9_7 +2
  • RHSA-2025:23323 Released 2025-12-18 · Red Hat rating Moderate
    python3.12 security update
    • Red Hat Enterprise Linux AppStream (v. 9) python3.12-3.12.12-1.el9_7, python3.12-devel-3.12.12-1.el9_7, python3.12-libs-3.12.12-1.el9_7 +1
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) python3.12-3.12.12-1.el9_7, python3.12-debug-3.12.12-1.el9_7, python3.12-idle-3.12.12-1.el9_7 +2
  • 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

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AI (RHEL AI)AffectedNo fix yet: Fix deferred
Red Hat Ceph Storage 7Fixed RHSA-2026:1858
Red Hat Ceph Storage 8Fixed RHSA-2026:1652
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2026:0354
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:0355
Red Hat Discovery 2Fixed RHSA-2026:0414
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:23940
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2025:23530, RHSA-2026:0123
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:23323, RHSA-2025:23342
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:0353
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2026:0354
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:0355
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:23940
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:23342
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:0353
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:23530, RHSA-2026:0123
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:23940
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:23323, RHSA-2025:23342
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:0353
Red Hat Hardened ImagesFixed RHSA-2026:7443, RHSA-2026:7661, RHSA-2026:8822, RHSA-2026:8824
Red Hat Update Infrastructure 5Fixed RHSA-2026:0685
Not affected: 2 products
  • Red Hat Ceph Storage 7
  • Red Hat Ceph Storage 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-8291
  2. 2026-10-03 Alias added: GHSA-49g5-f6qw-8mm7

References

Patch 8

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