FKIE_CVE-2026-14164

Vulnerability from fkie_nvd - Published: 2026-06-30 07:16 - Updated: 2026-09-30 17:16
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:30333
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:52674
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:52675
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:54387
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:54760
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:54769
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:56954
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:58558
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:58573
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:58574
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:58981
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:61783
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:62409
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:63041
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:63044
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:63100
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:65839
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:65851
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:67857
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:67935
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:72394
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:72395
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:72399
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:72470
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:72475
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:72476
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:72502
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:73909
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:73959
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:73960
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:73961
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:73962
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2026-14164
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2493411
secalert@redhat.comhttps://github.com/libarchive/libarchive/issues/3069
secalert@redhat.comhttps://github.com/libarchive/libarchive/pull/3071
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/libarchive/libarchive/issues/3069
Impacted products
Vendor Product Version

{
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          "vendor": "Red Hat",
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          "vendor": "Red Hat",
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              "versionType": "rpm"
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          "packageName": "rhcos",
          "product": "Red Hat OpenShift Container Platform 4.21",
          "vendor": "Red Hat",
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              "status": "unaffected",
              "version": "4.21.9.6.202609021100-0",
              "versionType": "rpm"
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          "product": "Red Hat OpenShift Container Platform 4.22",
          "vendor": "Red Hat",
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              "versionType": "rpm"
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          "collectionURL": "https://catalog.redhat.com/software/containers/",
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          "product": "Red Hat Discovery 2",
          "vendor": "Red Hat",
          "versions": [
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          "cpes": [
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          "packageName": "libarchive-main",
          "product": "Red Hat Hardened Images",
          "vendor": "Red Hat",
          "versions": [
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          "vendor": "Red Hat",
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          "vendor": "Red Hat",
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          "product": "Red Hat Update Infrastructure 5",
          "vendor": "Red Hat",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • 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.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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