CVE-2026-14164

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-30. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

June 30, 2026

Last Modified

September 17, 2026

Advisory Details (4)

Auto-updated Jun 30, 2026
Patch available. Sources: redhat, github_pr.
github_pr

rar5: Avoid dangling pointers in init_unpack

Fix merged in libarchive/libarchive PR #3071 on 2026-05-24 — awaiting tagged release

https://github.com/libarchive/libarchive/pull/3071
generic

RAR5: double-free in `filtered_buf` cleanup after OOM in `init_unpack()` · Issue #3069 · libarchive/libarchive · GitHub

https://github.com/libarchive/libarchive/issues/3069
redhat

2493411 – (CVE-2026-14164) CVE-2026-14164 libarchive: Double-Free Vulnerability in RAR5 Decompression Logic via dangling filtered_buf pointer in init_unpack()

https://bugzilla.redhat.com/show_bug.cgi?id=2493411
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-14164

Vendor Advisories for CVE-2026-14164(17)

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

Patch Availability(19)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibarchive13t64 (3.8.5-1ubuntu2.2) @ resolute2026-09-18ubuntu
redhatrhcos-413.92.202609080414-02026-09-17redhat
redhatrhcos-418.94.202609031320-02026-09-17redhat
redhatrhcos-414.92.202609011250-02026-09-14redhat
redhatrhcos-4.19.9.6.202609021231-02026-09-09redhat
redhatrhcos-4.21.9.6.202609021100-02026-09-08redhat
redhatrhcos-4.20.9.6.202609021029-02026-09-08redhat
redhatdiscovery/discovery-ui-rhel9:17882061962026-08-31redhat
redhatlibarchive-0:3.5.3-5.el9_2.32026-08-24redhat
redhatrhui5/rhua-tp-rhel9:17872412602026-08-24redhat
redhatlibarchive-0:3.5.3-7.el9_6.22026-08-24redhat
redhatlibarchive-0:3.5.3-5.el9_4.22026-08-24redhat
redhatlibarchive-0:3.7.7-5.el10_0.12026-08-19redhat
redhatrhcos-4.22.9.8.202608130832-02026-08-18redhat
redhatdiscovery/discovery-server-rhel9:17866385732026-08-13redhat
redhatrhui5/rhua-rhel9:17865335292026-08-12redhat
redhatlibarchive-0:3.7.7-10.el10_22026-08-10redhat
redhatlibarchive-0:3.5.3-11.el9_82026-08-10redhat
redhatlibarchive-main-3.8.8-2.hum12026-06-26redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libarchive3.4.3-2 ... 3.8.9-1 (25 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libarchive3.6.2-1, 3.6.2-1+deb12u1, 3.6.2-1+deb12u2, 3.6.2-1+deb12u3, 3.6.2-1+deb12u43.6.2-1+deb12u5—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libarchive3.7.4-4 ... 3.8.9-1 (9 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libarchive3.7.4-4, 3.8.4-1, 3.8.5-1, 3.8.6-1, 3.8.7-13.8.8-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(4)

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 34× in last 7d / 135× 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 396 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-14164?
CVE-2026-14164 is a high vulnerability published on June 30, 2026. A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of…
When was CVE-2026-14164 disclosed?
CVE-2026-14164 was first published in the National Vulnerability Database on June 30, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14164 actively exploited?
CVE-2026-14164 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 58.9% of all scored CVEs.
What is the CVSS score of CVE-2026-14164?
CVE-2026-14164 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-14164?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14164, 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

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