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CVE-2026-111943VulnerabilityPublished Updated

SUSE · Security update for go1.26

Affects SUSESource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-111943· Medium 6.8

Not known to be exploited · CVSS 6.8 Medium : upgrade SUSE x509 to 1.27.3 or 1.26.10 when convenient.

Data as of 10 Nov 2026, 20:07 UTC

CVSS 3.1 base score
6.8Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.16.8
Patch
Available – fixed in 1.27.3, 1.26.10
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Oct 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 10 Nov 2026.

What to do

Upgrade crypto/x509 to 1.27.3 or 1.26.10.

Affected software

ProductAffectedFixed in
Go standard librarycrypto/x509Affected
  • >=1.27.0-0 <1.27.3
Fixed in
  • 1.27.3
Go standard librarycrypto/x509Affected
  • <1.26.10
Fixed in
  • 1.26.10
Gocrypto/x509pkg:golang/crypto/x509Other threatsAffected
  • <1.26.10
  • >=1.27.0-0 <1.27.3
Fixed in
  • 1.26.10
  • 1.27.3

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

AI-suggested

Apply the update to Go 1.26.10 which includes fixes for all listed vulnerabilities. Since this is an official security update from SUSE, deploying this patch is the recommended remediation.

Description

This security update for Go 1.26 addresses multiple vulnerabilities including a double flow control refund on HTTP/2 server streams, excessive CPU consumption from repeated initial window changes, and security concerns related to a specific Certificate Authority in the crypto/x509 package. These issues are fixed in Go 1.26.10 as part of the SUSE update.

References

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