CVE-2026-4111

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-03-13. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:redhat, epss, ghsa
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archive_read_data() processing path. When a specially crafted RAR5 archive is processed, the decompression routine may enter a state where internal logic prevents forward progress. This condition results in an infinite loop that continuously consumes CPU resources. Because the archive passes checksum validation and appears structurally valid, affected applications cannot detect the issue before processing. This can allow attackers to cause persistent denial-of-service conditions in services that automatically process archives.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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%
Exploitation1% × 40%
Automatability100% × 15%
EPSS PROB
0.7%
EPSS %ILE
51st
KEV
Not listed

Published

March 13, 2026

Last Modified

September 1, 2026

Advisory Details (10)

Auto-updated Apr 29, 2026
Patch available. Sources: redhat.
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:7329
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:7239
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:7106
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:7105
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:7093
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:6647
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:5080
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:5063
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:10081
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:10065

Vendor Advisories for CVE-2026-4111(20)

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

Patch Availability(27)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibarchive13t64 (3.7.7-0ubuntu3.1) @ questing2026-08-24ubuntu
redhatrhaiis/model-opt-cuda-rhel9:17806819842026-06-10redhat
redhatrhcos-417.94.202605112123-02026-05-20redhat
redhatrhcos-414.92.202605060243-02026-05-13redhat
redhatrhcos-415.92.202605060220-02026-05-13redhat
redhatrhaiis/vllm-spyre-rhel9:17782445462026-05-12redhat
redhatrhaiis/model-opt-cuda-rhel9:17782445592026-05-11redhat
redhatrhaiis/vllm-rocm-rhel9:17782445312026-05-11redhat
redhatrhcos-416.94.202604211449-02026-04-30redhat
redhatrhcos-4.19.9.6.202604211219-02026-04-29redhat
redhatrhui5/rhua-rhel9:17768688422026-04-23redhat
redhatrhcos-418.94.202604140044-02026-04-22redhat
redhatinsights-proxy/insights-proxy-container-rhel9:17768689612026-04-22redhat
redhatlibarchive-main-3.8.7-1.hum12026-04-20redhat
redhatlibarchive-0:3.7.7-5.el10_02026-04-20redhat
redhatrhaiis/model-opt-cuda-rhel9:17757498572026-04-17redhat
redhatrhaiis/vllm-rocm-rhel9:17756802622026-04-17redhat
redhatrhaiis/vllm-cuda-rhel9:17756801922026-04-17redhat
redhatrhcos-413.92.202604080111-02026-04-16redhat
redhatdiscovery/discovery-ui-rhel9:17756759222026-04-09redhat
redhatrhaiis/vllm-cuda-rhel9:17757405632026-04-09redhat
redhatlibarchive-0:3.5.3-4.el9_4.22026-04-08redhat
redhatlibarchive-0:3.5.3-2.el9_0.32026-04-08redhat
redhatlibarchive-0:3.5.3-6.el9_6.12026-04-08redhat
redhatlibarchive-0:3.5.3-5.el9_2.12026-04-06redhat
redhatlibarchive-0:3.7.7-5.el10_12026-03-19redhat
redhatlibarchive-0:3.5.3-7.el9_72026-03-19redhat

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 rangeFix by version rangeDependents
libarchive3.4.3-2, 3.4.3-2+deb11u1, 3.4.3-2+deb11u2, 3.4.3-2+deb11u3
  • every version up to 3.4.3-2+deb11u4: fixed in 3.4.3-2+deb11u4
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
libarchive3.6.2-1, 3.6.2-1+deb12u1, 3.6.2-1+deb12u2, 3.6.2-1+deb12u3
  • every version up to 3.6.2-1+deb12u4: fixed in 3.6.2-1+deb12u4
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
libarchive3.7.4-4
  • every version up to 3.7.4-4+deb13u1: fixed in 3.7.4-4+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
libarchive3.7.4-4, 3.8.4-1, 3.8.5-1
  • every version up to 3.8.6-1: fixed in 3.8.6-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(7)

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 8× in last 7d / 22× 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 224 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-4111?
CVE-2026-4111 is a high vulnerability published on March 13, 2026. A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archivereaddata() processing path. When a specially crafted RAR5 archive is processed, the decompression routine may enter a state where internal logic prevents forward progress. This…
When was CVE-2026-4111 disclosed?
CVE-2026-4111 was first published on March 13, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4111 actively exploited?
CVE-2026-4111 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-4111?
CVE-2026-4111 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-4111?
A fix for CVE-2026-4111 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-4111 are linked in the Vendor Advisories panel on this page.

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