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
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)
EPSS
34.8%
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 7× in last 7d / 100× 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 333 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

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 34.8% 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-42496

Explore →

Is Your Infrastructure Affected by CVE-2026-42496?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs