Bundesamt für Sicherheit in der Informationstechnik Amazon · Golang Go: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
Affects Bundesamt für Sicherheit in der Informationstechnik AmazonSource GCVE Database
Not known to be exploited : upgrade to 1.27.3 or 1.26.10 when convenient.
Data as of 29 Oct 2026, 12:05 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.27.3, 1.26.10
Exploitation evidence
Disclosed: evidence found.
CVE published 21 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 crypto/x509 to 1.27.3 or 1.26.10.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Go standard librarycrypto/x509 | Affected
| Fixed in
|
| Go standard librarycrypto/x509 | Affected
| Fixed in
|
Gocrypto/x509pkg:golang/crypto/x509Other threats | Affected
| 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 updated Go packages (version 1.26.10+1) for Red Hat Enterprise Linux 9 and Hardened Images RPMs that include the fix for CVE-2026-111943. Users should apply these official updates promptly to mitigate the vulnerability. Detailed update instructions are available in the Red Hat advisories at https://access.redhat.com/articles/11258 and https://images.redhat.com/. No additional mitigation actions are indicated beyond applying the vendor-provided patches.
Description
A security vulnerability identified as CVE-2026-111943 affects the Go programming language's crypto/x509 package. This issue involves security concerns related to a specific Certificate Authority. Red Hat has released updates to mitigate this vulnerability as part of Go version 1.26.10+1 in Red Hat Enterprise Linux 9 and Hardened Images RPMs. The update addresses this and other related security issues, providing important fixes to prevent potential denial of service and certificate validation problems.
References
- wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-4049.json (opens in a new tab)
- wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-4049 (opens in a new tab)
- groups.google.com/g/golang-announce/c/66pojueaQek (opens in a new tab)
- github.com/golang/go/issues/82345 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:86196 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:85899 (opens in a new tab)
- security.gentoo.org/glsa/202610-01 (opens in a new tab)
- errata.build.resf.org/RLSA-2026:86203 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:86029 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:86093 (opens in a new tab)
- bodhi.fedoraproject.org/updates/FEDORA-2026-1ffbf97eba (opens in a new tab)
- bodhi.fedoraproject.org/updates/FEDORA-2026-8eeffa4c43 (opens in a new tab)
- bodhi.fedoraproject.org/updates/FEDORA-2026-ec2ce9d2ef (opens in a new tab)
- bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-18ba500adb (opens in a new tab)
- bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-2d8a0ed237 (opens in a new tab)
- bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-93a23666b1 (opens in a new tab)
- bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-d3ec7f00e2 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:86738 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:86733 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:86776 (opens in a new tab)