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CVE-2026-27142VulnerabilityPublished Updated

Bundesamt für Sicherheit in der Informationstechnik Amazon · Golang Go: Mehrere Schwachstellen

Affects Bundesamt für Sicherheit in der Informationstechnik AmazonSource GCVE Database

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Authoritative record:CVE-2026-27142· Medium 6.1

Not known to be exploited · CVSS 6.1 Medium : upgrade to 1.26.1 or 1.25.8 when convenient.

Data as of 29 Oct 2026, 12:17 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.26.1, 1.25.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Mar 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 29 Oct 2026.

What to do

Upgrade html/template to 1.26.1 or 1.25.8.

Affected software

ProductAffectedFixed in
Go standard libraryhtml/templateAffected
  • >=1.26.0-0 <1.26.1
Fixed in
  • 1.26.1
Go standard libraryhtml/templateAffected
  • <1.25.8
Fixed in
  • 1.25.8
Gohtml/templatepkg:golang/html/templateOther threatsAffected
  • <1.25.8
  • >=1.26.0-0 <1.26.1
Fixed in
  • 1.25.8
  • 1.26.1
Gogithub.com/golang/go/src/html/templatepkg:golang/github.com/golang/go/src/html/templateOther threatsAffected
  • =0
  • =1.26.0-0
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 official security updates that fix these vulnerabilities. Users should apply the updates to Red Hat OpenShift Service Mesh 3.2.7 and Red Hat Hardened Images RPMs as detailed in advisories RHSA-2026:33142 and RHSA-2026:32987. The fixed version is 5.36.00.16. No additional mitigation steps are required beyond applying these official patches.

Description

Multiple vulnerabilities have been identified in the Go programming language components used in Red Hat OpenShift Service Mesh and Red Hat Hardened Images. These include denial of service issues in Go net/mail, HTTP/2, and net packages. Red Hat has released security advisories and updates addressing these issues, with fixed versions available. The vulnerabilities affect versions prior to 5.36.00.16. No public exploits or in-the-wild exploitation have been reported.

References

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