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No exploitation reportedFix available

CVE-2025-13462

No exploitation reported by the sources we read.

  • Published2026-03-12
  • Fixed in3.14.4 · 3.13.13
  • WeaknessCWE-20 · CWE-434 · CWE-74

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The "tarfile" module would still apply normalization of AREGTYPE (\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.

Timeline

dates in UTC
  1. 2026-03-1218:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-25 03:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-13462?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-13462?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Python
BranchAffectedFixed in
3.14≥ 3.14.0, < 3.14.43.14.4
3.13< 3.13.133.13.13
3.15= 3.15.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Python to 3.14.4 · 3.13.13

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2026-03-12
  • OpenCVESSVC decisionnone—
  • CNACVSS 4.02read 2026-10-23
  • NVDCVSS 3.13.3read 2026-10-23
  • CISA-ADPweakness (CWE)CWE-20, CWE-434, CWE-742026-03-12
  • FIRST EPSSEPSS score0.2 %2026-10-24

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS 4.0 vector
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-03-12
Last Modified
2026-08-13
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-13462?

The "tarfile" module would still apply normalization of AREGTYPE (\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.

Is CVE-2025-13462 actively exploited?

Active exploitation of CVE-2025-13462 has not been confirmed. Its EPSS score was 0.2% on 2026-10-24, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-13462?

CVE-2025-13462 has a CVSS v3 base score of 3.3 (LOW severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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