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CVE-2026-15789VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-15789· Medium 6.9

Not known to be exploited · CVSS 6.9 Medium : upgrade Red Hat to 0.31.2 when convenient.

Data as of 7 Nov 2026, 23:24 UTC

CVSS 4.0 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.31.2
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 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 7 Nov 2026.

What to do

Upgrade BuildKit to 0.31.2.

Affected software

ProductAffectedFixed in
mobyBuildKitAffected
  • <0.31.2
Fixed in
  • 0.31.2

AI-suggested

Red Hat has released updated packages (podman-6.0.2-2.3.hum1 and related RPMs) that fix this vulnerability. Users should apply these updates to their Red Hat Hardened Images to remediate the issue. Since the vulnerability requires valid access to the BuildKit control API, restricting access to this API and ensuring it is not exposed unnecessarily can also mitigate risk.

Description

A vulnerability (CVE-2026-15789) in BuildKit allows a custom client with valid permissions to the BuildKit control API to escape the BuildKit-controlled state directory. This flaw could enable unauthorized modification or disclosure of sensitive data. The vulnerability requires the attacker to already have access to the BuildKit daemon, limiting the attack surface to exposed or compromised control APIs. Red Hat has issued an update for Red Hat Hardened Images RPMs including podman packages to address this issue.

References

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