CVE-2026-42496

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-26. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 0

A fix is available — apply it.

Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory.

_make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target.

A subsequent open through the extracted name reads or writes the attacker chosen path.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
35.1%
KEV
Not listed

Published

May 26, 2026

Last Modified

July 15, 2026

Advisory Details (3)

Auto-updated May 28, 2026
No patch confirmed yet.
generic
https://www.cve.org/CVERecord?id=CVE-2026-42497
generic

CHANGES - metacpan.org

https://metacpan.org/release/BINGOS/Archive-Tar-3.08/changes
generic
https://github.com/jib/archive-tar-new/commit/17c873492a05eddc0de18c1485e0b2cccd5a9158.patch

Vendor Advisories for CVE-2026-42496(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatperl-Archive-Tar-0:2.38-6.el9_8.12026-06-29redhat
redhatperl:5.32-8100020260616084412.651ee29f2026-06-29redhat
redhatperl-Archive-Tar-0:2.30-2.el8_102026-06-29redhat

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.

Weakness Classification(2)

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

Additional Vendor Advisories

(2)

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 9× in last 7d / 66× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 237 total refreshes for this CVE.

  1. 2026-07-23 03:11 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-19 14:31 UTCEPSS rescore
  6. 2026-07-19 02:29 UTCEPSS rescore
  7. 2026-07-18 10:04 UTCEPSS rescore
  8. 2026-07-17 22:29 UTCOSV refresh
  9. 2026-07-16 17:03 UTCEPSS rescore
  10. 2026-07-15 16:57 UTCEPSS rescore
  11. 2026-07-15 02:00 UTCEPSS rescore
  12. 2026-07-13 22:30 UTCEPSS rescore
  13. 2026-07-13 06:13 UTCEPSS rescore
  14. 2026-07-12 05:46 UTCEPSS rescore
  15. 2026-07-11 08:27 UTCEPSS rescore
  16. 2026-07-09 19:10 UTCEPSS rescore
  17. 2026-07-08 15:15 UTCEPSS rescore
  18. 2026-07-07 13:46 UTCEPSS rescore
  19. 2026-07-06 16:27 UTCEPSS rescore
  20. 2026-07-06 16:27 UTCEPSS rescore
  21. 2026-07-06 02:23 UTCEPSS rescore
  22. 2026-07-06 02:23 UTCEPSS rescore
  23. 2026-07-05 02:30 UTCEPSS rescore
  24. 2026-07-04 06:31 UTCEPSS rescore
  25. 2026-07-01 15:06 UTCEPSS rescore
Show 75 more
  1. 2026-06-30 23:22 UTCEPSS rescore
  2. 2026-06-29 20:19 UTCVendor advisory
  3. 2026-06-29 20:19 UTCGHSA enrichment
  4. 2026-06-29 15:58 UTCVendor advisory
  5. 2026-06-29 15:58 UTCGHSA enrichment
  6. 2026-06-29 14:06 UTCEPSS rescore
  7. 2026-06-29 01:30 UTCVendor advisory
  8. 2026-06-29 01:30 UTCGHSA enrichment
  9. 2026-06-28 14:07 UTCEPSS rescore
  10. 2026-06-28 12:30 UTCVendor advisory
  11. 2026-06-28 12:30 UTCGHSA enrichment
  12. 2026-06-28 08:09 UTCVendor advisory
  13. 2026-06-28 08:09 UTCGHSA enrichment
  14. 2026-06-28 04:56 UTCEPSS rescore
  15. 2026-06-28 03:48 UTCVendor advisory
  16. 2026-06-28 03:48 UTCGHSA enrichment
  17. 2026-06-27 23:26 UTCVendor advisory
  18. 2026-06-27 23:26 UTCGHSA enrichment
  19. 2026-06-27 19:04 UTCVendor advisory
  20. 2026-06-27 19:04 UTCGHSA enrichment
  21. 2026-06-27 11:32 UTCVendor advisory
  22. 2026-06-27 11:31 UTCGHSA enrichment
  23. 2026-06-27 07:09 UTCVendor advisory
  24. 2026-06-27 07:09 UTCGHSA enrichment
  25. 2026-06-27 03:08 UTCEPSS rescore
  26. 2026-06-26 23:13 UTCVendor advisory
  27. 2026-06-26 23:12 UTCGHSA enrichment
  28. 2026-06-26 18:50 UTCVendor advisory
  29. 2026-06-26 18:50 UTCGHSA enrichment
  30. 2026-06-26 02:55 UTCVendor advisory
  31. 2026-06-26 02:55 UTCGHSA enrichment
  32. 2026-06-25 21:27 UTCVendor advisory
  33. 2026-06-25 21:27 UTCGHSA enrichment
  34. 2026-06-25 17:06 UTCVendor advisory
  35. 2026-06-25 17:06 UTCGHSA enrichment
  36. 2026-06-25 13:49 UTCEPSS rescore
  37. 2026-06-25 13:49 UTCEPSS rescore
  38. 2026-06-25 12:40 UTCVendor advisory
  39. 2026-06-25 12:40 UTCGHSA enrichment
  40. 2026-06-24 14:05 UTCEPSS rescore
  41. 2026-06-23 21:33 UTCEPSS rescore
  42. 2026-06-22 14:25 UTCEPSS rescore
  43. 2026-06-22 14:25 UTCEPSS rescore
  44. 2026-06-21 14:56 UTCEPSS rescore
  45. 2026-06-21 14:56 UTCEPSS rescore
  46. 2026-06-21 01:59 UTCEPSS rescore
  47. 2026-06-19 19:25 UTCEPSS rescore
  48. 2026-06-18 17:52 UTCEPSS rescore
  49. 2026-06-18 17:52 UTCEPSS rescore
  50. 2026-06-18 04:14 UTCGHSA enrichment
  51. 2026-06-17 23:51 UTCGHSA enrichment
  52. 2026-06-17 19:29 UTCGHSA enrichment
  53. 2026-06-17 17:53 UTCEPSS rescore
  54. 2026-06-17 12:35 UTCGHSA enrichment
  55. 2026-06-17 08:10 UTCGHSA enrichment
  56. 2026-06-17 02:13 UTCGHSA enrichment
  57. 2026-06-16 21:52 UTCGHSA enrichment
  58. 2026-06-16 17:52 UTCEPSS rescore
  59. 2026-06-16 17:31 UTCVendor advisory
  60. 2026-06-16 17:30 UTCGHSA enrichment
  61. 2026-06-16 11:40 UTCVendor advisory
  62. 2026-06-16 11:40 UTCGHSA enrichment
  63. 2026-06-16 07:17 UTCVendor advisory
  64. 2026-06-16 07:17 UTCGHSA enrichment
  65. 2026-06-16 02:55 UTCVendor advisory
  66. 2026-06-16 02:55 UTCGHSA enrichment
  67. 2026-06-15 22:34 UTCVendor advisory
  68. 2026-06-15 22:34 UTCGHSA enrichment
  69. 2026-06-15 17:49 UTCEPSS rescore
  70. 2026-06-15 13:58 UTCVendor advisory
  71. 2026-06-15 13:58 UTCGHSA enrichment
  72. 2026-06-15 03:58 UTCVendor advisory
  73. 2026-06-15 03:58 UTCGHSA enrichment
  74. 2026-06-14 23:36 UTCVendor advisory
  75. 2026-06-14 23:36 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-42496?
CVE-2026-42496 is a critical vulnerability published on May 26, 2026. Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory. makespecial_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards…
When was CVE-2026-42496 disclosed?
CVE-2026-42496 was first published in the National Vulnerability Database on May 26, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42496 actively exploited?
CVE-2026-42496 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42496?
CVE-2026-42496 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-42496?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42496, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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