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CVE-2026-42504VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat OpenShift GitOps v1.19.7 security update

Affects Red HatSource GCVE Database

0
Authoritative record:CVE-2026-42504· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade Red Hat mime to 1.26.4 or 1.25.11 soon.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.26.4, 1.25.11
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade mime to 1.26.4 or 1.25.11.

Affected software

ProductAffectedFixed in
Go standard librarymimeAffected
  • >=1.26.0-0 <1.26.4
Fixed in
  • 1.26.4
Go standard librarymimeAffected
  • <1.25.11
Fixed in
  • 1.25.11
Gomimepkg:golang/mimeOther threatsAffected
  • <1.25.11
  • >=1.26.0-0 <1.26.4
Fixed in
  • 1.25.11
  • 1.26.4

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

AI-suggested

A security update for Red Hat OpenShift GitOps v1.19.7 is available. Users should apply this update promptly to remediate the vulnerability. No additional mitigation guidance is provided.

Description

A security update is available for Red Hat OpenShift GitOps version 1.19.7 addressing a vulnerability identified as CVE-2026-42504. No exploit is known to be active in the wild.

References

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