CVE-2026-4424 (GCVE-0-2026-4424)

Vulnerability from cvelistv5 – Published: 2026-03-19 13:50 – Updated: 2026-04-16 19:28
VLAI?
Title
Libarchive: libarchive: information disclosure via heap out-of-bounds read in rar archive processing
Summary
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:3.7.7-8.el10_1 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.1
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    Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:3.1.2-14.el7_9.2 , < * (rpm)
    cpe:/o:redhat:rhel_els:7
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    Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:3.3.3-7.el8_10 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:8::baseos
    cpe:/a:redhat:enterprise_linux:8::crb
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    Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:3.3.2-8.el8_2.2 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.2::baseos
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    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:3.5.3-9.el9_7 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:3.5.3-9.el9_7 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
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    Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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    Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
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    Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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Date Public ?
2026-03-19 00:00
Credits
Red Hat would like to thank Elhanan Haenel for reporting this issue.
Show details on NVD website
To clipboard 

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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.