CVE-2025-13462

CRITICALNVD 3.39.8
EchelonGraph scoreMEDIUM confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score 9.8 from GitHub Security Advisory (severity: LOW) published 2026-03-12. NVD baseline CVSS 3.3; sources differ by 6.5.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 3.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
3.3
EG Score
9.8CRITICALmedium confidence
EG Risk
44
EG Risk 44/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-19). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 12, 2026

Last Modified

August 13, 2026

Advisory Details (9)

Auto-updated Jun 5, 2026
Patch available. Sources: github_commit, github_pr.
Web page

Mailman 3 [CVE-2025-13462]: tarfile: Skip DIRTYPE normalization during GNU long name and link handling - Security-announce - python.org

https://mail.python.org/archives/list/[email protected]/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE/
GitHub pull request

gh-141707: Skip TarInfo DIRTYPE normalization during GNU long name handling

Fix merged in python/cpython PR #143934 on 2026-03-11 — awaiting tagged release

https://github.com/python/cpython/pull/143934
Web page

Incorrect parsing of TarInfo header when GNU long name and type AREGTYPE are combined · Issue #141707 · python/cpython · GitHub

https://github.com/python/cpython/issues/141707
GitHub commit

commit d10950739a78 (python/cpython)

Fix landed in python/cpython commit d10950739a78 — awaiting tagged release

https://github.com/python/cpython/commit/d10950739a78f54d0718d88fb5a868374603c084
GitHub commit

commit ae99fe3a33b4 (python/cpython)

Fix landed in python/cpython commit ae99fe3a33b4 — awaiting tagged release

https://github.com/python/cpython/commit/ae99fe3a33b43e303a05f012815cef60b611a9c7
GitHub commit

commit 9a23b753552a (python/cpython)

Fix landed in python/cpython commit 9a23b753552a — awaiting tagged release

https://github.com/python/cpython/commit/9a23b753552afa28e3a2f4d8863572fc66479406
GitHub commit

commit 7ad3093d76a7 (python/cpython)

Fix landed in python/cpython commit 7ad3093d76a7 — awaiting tagged release

https://github.com/python/cpython/commit/7ad3093d76a748af55bdb1d2e8aad3638163b017
GitHub commit

commit 72dde1016493 (python/cpython)

Fix landed in python/cpython commit 72dde1016493 — awaiting tagged release

https://github.com/python/cpython/commit/72dde1016493c52abe857fc4a7bf6c40138b4114
GitHub commit

commit 42d754e34c06 (python/cpython)

Fix landed in python/cpython commit 42d754e34c06 — awaiting tagged release

https://github.com/python/cpython/commit/42d754e34c06e57ad6b8e7f92f32af679912d8ab

Patch Availability(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntupython3.10-venv (3.10.12-1~22.04.16) @ jammy2026-10-20ubuntu
redhatpython3-11-main-3.11.15-4.2.hum12026-04-28redhat
redhatpython3-12-main-3.12.13-3.1.hum12026-04-23redhat
redhatpython3-14-main-3.14.4-1.hum12026-04-11redhat
redhatpython3-13-main-3.13.13-1.hum12026-04-10redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(6 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
python2.72.7.18-10 ... 2.7.18-9 (10 versions)
  • every version on: no fix on record
—
python3.93.9.2-1 ... 3.9.2-1+deb11u6 (7 versions)
  • every version up to 3.9.2-1+deb11u7: fixed in 3.9.2-1+deb11u7
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
python3.133.13.11-1 ... 3.13.9-1 (7 versions)
  • every version up to 3.13.14-1: fixed in 3.13.14-1
—
python3.143.14.0-1 ... 3.14.3-3 (17 versions)
  • every version up to 3.14.3-4: fixed in 3.14.3-4
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
python3.113.11.2-6 ... 3.11.2-6+deb12u7 (8 versions)
  • every version up to 3.11.2-6+deb12u8: fixed in 3.11.2-6+deb12u8
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
python3.133.13.5-2
  • every version up to 3.13.5-2+deb13u1: fixed in 3.13.5-2+deb13u1
—

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 28× in last 7d / 55× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 97 of 340 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 243 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-20 11:35 UTCEG score recompute
  2. 2026-10-20 11:35 UTCVendor advisory
  3. 2026-10-20 11:35 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  4. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  5. 2026-10-19 12:32 UTCEG score recompute
  6. 2026-10-19 12:32 UTCVendor advisory
  7. 2026-10-19 12:32 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  8. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-10-18 10:50 UTCVendor advisory
  10. 2026-10-18 10:49 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  11. 2026-10-18 05:50 UTCEG score recompute
  12. 2026-10-17 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  13. 2026-10-17 07:24 UTCEG score recompute
  14. 2026-10-17 07:24 UTCVendor advisory
  15. 2026-10-17 07:24 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  16. 2026-10-16 16:37 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-10-16 08:24 UTCEG score recompute
  18. 2026-10-16 08:24 UTCVendor advisory
  19. 2026-10-16 08:24 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  20. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-10-15 07:32 UTCEG score recompute
  22. 2026-10-15 07:32 UTCVendor advisory
  23. 2026-10-15 07:32 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  24. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-10-14 03:29 UTCEG score recompute
Show 72 more
  1. 2026-10-14 03:29 UTCVendor advisory
  2. 2026-10-14 03:29 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  3. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  4. 2026-10-12 23:29 UTCVendor advisory
  5. 2026-10-12 23:29 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  6. 2026-10-12 17:24 UTCEG score recompute
  7. 2026-10-12 12:22 UTCVendor advisory
  8. 2026-10-12 12:22 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  9. 2026-10-11 20:55 UTCEG score recompute
  10. 2026-10-11 19:05 UTCEG score recompute
  11. 2026-10-11 15:45 UTCEG score recompute
  12. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  13. 2026-10-11 11:47 UTCOSV refresh
  14. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  18. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  22. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  24. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  25. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  26. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  27. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  28. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  29. 2026-09-22 00:15 UTCOSV refresh
  30. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  31. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  32. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  33. 2026-09-16 05:13 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  34. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  35. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  36. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  37. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  38. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  39. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  40. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  41. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  42. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  43. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  44. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  45. 2026-09-02 19:40 UTCOSV refresh
  46. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  47. 2026-09-01 04:38 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  48. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  49. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  50. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  51. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  52. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  53. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  54. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  55. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  56. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  57. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  58. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  59. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  60. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  61. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  62. 2026-08-16 11:43 UTCEG score recompute
  63. 2026-08-16 11:43 UTCVendor advisory
  64. 2026-08-16 11:43 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  65. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  66. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  67. 2026-08-14 23:59 UTCVendor advisory
  68. 2026-08-14 23:59 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  69. 2026-08-14 20:05 UTCVendor advisory
  70. 2026-08-14 20:05 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8
  71. 2026-08-14 15:32 UTCVendor advisory
  72. 2026-08-14 15:32 UTCGHSA enrichmentGHSA-9qpv-486p-2v4h · GitHub severity LOW · GitHub CVSS 9.8

Frequently asked(5)

What is CVE-2025-13462?
CVE-2025-13462 is a critical-severity vulnerability; its CVE record was published on March 12, 2026. The "tarfile" module would still apply normalization of AREGTYPE (\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPELONGNAME or GNUTYPELONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.
When was the CVE record for CVE-2025-13462 published?
The CVE record for CVE-2025-13462 was published on March 12, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 13, 2026; the record at its source may have been updated since.
Is CVE-2025-13462 actively exploited?
CVE-2025-13462 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-13462?
CVE-2025-13462 has a CVSS v3 base score of 3.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8 (CRITICAL).
How do I remediate CVE-2025-13462?
A fix for CVE-2025-13462 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-13462 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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