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CVE-2026-15788VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Affects Red Hat buildahSource GCVE Database

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Authoritative record:CVE-2026-15788· Medium 5.6

Not known to be exploited · CVSS 5.6 Medium.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 4.0 base score
5.6Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Red Hatredhat/buildahpkg:rpm/redhat/buildahOther threatsAffected
  • =1.44.0-3.2.hum1
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released updated RPM packages (buildah-1.44.0-3.2.hum1 and buildah-tests-1.44.0-3.2.hum1) that address CVE-2026-15788. Users of affected Red Hat Hardened Images should apply these updates as provided by Red Hat to remediate the vulnerability. No additional mitigation steps are specified or required beyond applying the official update.

Description

Red Hat has issued a security advisory for Red Hat Hardened Images RPMs, specifically addressing a vulnerability identified as CVE-2026-15788 in the buildah package version 1.44.0-3.2.hum1. The update includes fixes for buildah and buildah-tests RPMs for aarch64 and x86_64 architectures. No explicit patch version beyond 1.44.0-3.2.hum1 is stated, and no exploit in the wild is currently known.

References

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