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CVE-2026-15789VulnerabilityPublished Updated

Red Hat Security Advisory: OpenShift Source To Image 1.6.4

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 8 Nov 2026, 08:03 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 OpenShift Source To Image version 1.6.4 which addresses these vulnerabilities. It is recommended that all users upgrade to version 1.6.4 to mitigate the security issues. No additional mitigations are specified in the vendor advisory.

Description

Red Hat has released OpenShift Source To Image version 1.6.4 to address multiple security vulnerabilities affecting earlier versions. These vulnerabilities include a file escape flaw in BuildKit that allows a client with valid permissions to access files outside the intended directory. The issues have a high severity rating and affect versions prior to 1.6.4. Users are advised to upgrade to version 1.6.4 to mitigate these vulnerabilities.

References

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