Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Affects Red HatSource GCVE Database
Not known to be exploited · CVSS 4.6 Medium.
Data as of 6 Nov 2026, 01:33 UTC
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GNUcpio | Affected
| Fixed in– |
AI-suggested
A fix is available in Red Hat Hardened Images RPMs with cpio updated to version 2.15-10.3.hum1. Users should apply this update to remediate the vulnerability. Until patched, users should avoid extracting cpio archives from untrusted or unverified sources as no other effective mitigation is available.
Description
A vulnerability in GNU cpio allows uncontrolled stack memory allocation when processing crafted cpio archives. This can cause the cpio process to crash due to a stack overflow, resulting in denial of service (DoS) on affected systems. The flaw is present in Red Hat Hardened Images RPMs shipping cpio versions prior to the fixed update. No effective mitigation other than avoiding extraction of untrusted cpio archives is currently available.
References
- access.redhat.com/errata/RHSA-2026:82414 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-66485 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- images.redhat.com (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_82414.json (opens in a new tab)