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CVE-2026-111943ModerateNetworkRevised 1 Nov

Go: CVE-2026-111943 Distrust compromised intermediate certificates in crypto/x509

MSRC advisory NVD CVE.org

Assessment

Severity
Moderate
CVSS base score
7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U
Impact
Not stated
EPSS · 30-day forecast
No EPSS score collected
Public detection template
No Nuclei template is listed in the current collected catalog
Exploitation detected
Unknown: not stated by MSRC
Exploitability
Not assessed
Publicly disclosed
Unknown: not stated by MSRC
Customer action
Required: follow the MSRC remediation guidance
Component
Mariner
Weakness
—
Issued by
Go
Published
28 Oct 2026 · October 2026
Last revised
1 Nov 2026Information published.
CVSS 3.1 base metricsRed raises the risk · green lowers it
Attack vector
NetworkAV:N
Attack complexity
HighAC:H
Privileges required
NonePR:N
User interaction
NoneUI:N
Scope
UnchangedS:U
Confidentiality
HighC:H
Integrity
HighI:H
Availability
NoneA:N

Updates that fix it

0 KBs

No KB listed

No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.

Affected products

Open Source Software
4 affected products
  • azl3 golang 1.26.10-1 on Azure Linux 3.0
  • azl3 golang 1.26.7-1 on Azure Linux 3.0
  • azl3 golang 1.27.1-1 on Azure Linux 3.0
  • azl3 golang 1.27.3-1 on Azure Linux 3.0

What changed

  1. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  2. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  3. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  4. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  5. Affected products: azl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.1-1 on Azure Linux 3.0 → azl3 golang 1.26.10-1 on Azure Linux 3.0, azl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.1-1 on Azure Linux 3.0, azl3 golang 1.27.3-1 on Azure Linux 3.0
  6. Affected products: azl3 golang 1.26.7-1 on Azure Linux 3.0 → azl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.1-1 on Azure Linux 3.0
  7. Detection template: No Nuclei template listed · Affected products: azl3 gcc 13.2.0-7 on Azure Linux 3.0, azl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.1-1 on Azure Linux 3.0, azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0, azl3 tensorflow 2.16.1-11 on Azure Linux 3.0 → azl3 golang 1.26.7-1 on Azure Linux 3.0 · Customer action: Required: apply the update → Required: follow the MSRC remediation guidance · Public disclosure: No → Unknown: not stated by MSRC · Exploitation detected: Not reported by MSRC → Unknown: not stated by MSRC · CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N → CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U · Severity: Important → Moderate
  8. Title changed
  9. Detection template: Unknown: exploit-code evidence is incomplete or retained → No Nuclei template listed · CISA KEV: Unknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
  10. Detection template: No Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained · CISA KEV: Not listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (46)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 6 Nov 2026 · 17:32:22 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  2. 6 Nov 2026 · 17:32:22 UTC Source coverage: public-exploit-codeIncomplete → Current
  3. 6 Nov 2026 · 17:32:22 UTC Source coverage: first-epssIncomplete → Current
  4. 6 Nov 2026 · 17:32:22 UTC Source coverage: msrc-cvrfIncomplete → Current
  5. 6 Nov 2026 · 16:31:02 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  6. 6 Nov 2026 · 16:31:02 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  7. 6 Nov 2026 · 16:31:02 UTC Source coverage: first-epssCurrent → Incomplete
  8. 6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  9. 2 Nov 2026 · 17:30:39 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  10. 2 Nov 2026 · 17:30:39 UTC Source coverage: public-exploit-codeIncomplete → Current
  11. 2 Nov 2026 · 17:30:39 UTC Source coverage: first-epssIncomplete → Current
  12. 2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
  13. 2 Nov 2026 · 16:27:39 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  14. 2 Nov 2026 · 16:27:39 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  15. 2 Nov 2026 · 16:27:39 UTC Source coverage: first-epssCurrent → Incomplete
  16. 2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  17. 2 Nov 2026 · 09:04:36 UTC Last revised1 Nov 2026 02:44 UTC → 1 Nov 2026 14:54 UTC
  18. 2 Nov 2026 · 09:04:36 UTC Affected productsazl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.1-1 on Azure Linux 3.0 → azl3 golang 1.26.10-1 on Azure Linux 3.0, azl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.1-1 on Azure Linux 3.0, azl3 golang 1.27.3-1 on Azure Linux 3.0
  19. 1 Nov 2026 · 07:59:15 UTC Last revised31 Oct 2026 01:45 UTC → 1 Nov 2026 02:44 UTC
  20. 1 Nov 2026 · 07:59:15 UTC Affected productsazl3 golang 1.26.7-1 on Azure Linux 3.0 → azl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.1-1 on Azure Linux 3.0
  21. 31 Oct 2026 · 08:05:42 UTC Last revised23 Oct 2026 01:08 UTC → 31 Oct 2026 01:45 UTC
  22. 31 Oct 2026 · 08:05:42 UTC Published23 Oct 2026 01:08 UTC → 28 Oct 2026 01:47 UTC
  23. 31 Oct 2026 · 08:05:42 UTC Public detection templateNo Nuclei template listed
  24. 31 Oct 2026 · 08:05:42 UTC EPSSNot scored → No EPSS score collected
  25. 31 Oct 2026 · 08:05:42 UTC Affected productsazl3 gcc 13.2.0-7 on Azure Linux 3.0, azl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.1-1 on Azure Linux 3.0, azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0, azl3 tensorflow 2.16.1-11 on Azure Linux 3.0 → azl3 golang 1.26.7-1 on Azure Linux 3.0
  26. 31 Oct 2026 · 08:05:42 UTC Customer actionRequired: apply the update → Required: follow the MSRC remediation guidance
  27. 31 Oct 2026 · 08:05:42 UTC ComponentVisual Studio → Mariner
  28. 31 Oct 2026 · 08:05:42 UTC Publicly disclosedNo → Unknown: not stated by MSRC
  29. 31 Oct 2026 · 08:05:42 UTC Exploitation detectedNot reported by MSRC → Unknown: not stated by MSRC
  30. 31 Oct 2026 · 08:05:42 UTC CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N → CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U
  31. 31 Oct 2026 · 08:05:42 UTC SeverityImportant → Moderate
  32. 24 Oct 2026 · 07:49:07 UTC ComponentMariner → Visual Studio
  33. 24 Oct 2026 · 07:49:07 UTC SummaryDistrust compromised intermediate certificates in crypto/x509 → Go: CVE-2026-111943 Distrust compromised intermediate certificates in crypto/x509
  34. 24 Oct 2026 · 07:49:07 UTC TitleDistrust compromised intermediate certificates in crypto/x509 → Go: CVE-2026-111943 Distrust compromised intermediate certificates in crypto/x509
  35. 23 Oct 2026 · 09:33:49 UTC Public exploit codeUnknown: exploit-code evidence is incomplete or retained → No Nuclei template listed
  36. 23 Oct 2026 · 09:33:49 UTC CISA KEVUnknown: catalog evidence is incomplete or retained → Not listed in the collected catalog
  37. 23 Oct 2026 · 09:33:49 UTC Source coverage: public-exploit-codeIncomplete → Current
  38. 23 Oct 2026 · 09:33:49 UTC Source coverage: first-epssIncomplete → Current
  39. 23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
  40. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  41. 23 Oct 2026 · 08:31:50 UTC Public exploit codeNo Nuclei template listed → Unknown: exploit-code evidence is incomplete or retained
  42. 23 Oct 2026 · 08:31:50 UTC CISA KEVNot listed in the collected catalog → Unknown: catalog evidence is incomplete or retained
  43. 23 Oct 2026 · 08:31:50 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  44. 23 Oct 2026 · 08:31:50 UTC Source coverage: first-epssCurrent → Incomplete
  45. 23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete
  46. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2026-111943. The catalog has a separate collection scope from Microsoft release records.

Collected exploitation and prediction evidence

Risk source coverage

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

Dated risk observations

Risk history is separate from CNA/OSV content history. Daily score drift is retained but only an upward crossing of 10% triggers the prediction change event.

Immutable source observations

18 recorded revisions

Each citation identifies one complete source statement. Source modification dates and the time this installation observed them are distinct. Latest history includes records historically associated by source identifiers; a removed alias is not a current equivalence claim. Exact citations show that source record's own earlier observations. Failed reads and unchanged polls do not rewrite history.

7 Nov 2026 04:33:25 UTC

On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denyl…

euvd · EUVD-2026-106926 · Published

5 Nov 2026 04:01:36 UTC

On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denyl…

euvd · EUVD-2026-106926 · Published

3 Nov 2026 03:04:10 UTC

On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denyl…

euvd · EUVD-2026-106926 · Published

1 Nov 2026 02:12:48 UTC

On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denyl…

euvd · EUVD-2026-106926 · Published

31 Oct 2026 06:57:40 UTC

On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denyl…

nvd · CVE-2026-111943 · Published

30 Oct 2026 15:45:26 UTC

Distrust compromised intermediate certificates in crypto/x509

cve-program · CVE-2026-111943 · Published

30 Oct 2026 01:56:51 UTC

On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denyl…

euvd · EUVD-2026-106926 · Published

29 Oct 2026 11:13:03 UTC

Bundled root certificates allow trust in distrusted emSign intermediates

osv · RUSTSEC-2026-0381 · Published

29 Oct 2026 11:13:03 UTC

Certificate verification may accept distrusted intermediates

osv · RUSTSEC-2026-0382 · Published

29 Oct 2026 11:13:03 UTC

Bundled root certificates allow trust in distrusted emSign intermediates

osv · RUSTSEC-2026-0383 · Published

28 Oct 2026 00:53:25 UTC

On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denyl…

euvd · EUVD-2026-106926 · Published

25 Oct 2026 05:17:13 UTC

On most platforms, Go uses the given system root certificates. However, in some narrower cases, the system trust stores may not be updated without further action. To defend against the narrower set of cases that may remain affected, a denyl…

nvd · CVE-2026-111943 · Published

24 Oct 2026 13:19:54 UTC

Bundled root certificates allow trust in distrusted emSign intermediates

osv · RUSTSEC-2026-0381 · Published

24 Oct 2026 13:19:54 UTC

Certificate verification may accept distrusted intermediates

osv · RUSTSEC-2026-0382 · Published

24 Oct 2026 13:19:54 UTC

Bundled root certificates allow trust in distrusted emSign intermediates

osv · RUSTSEC-2026-0383 · Published

23 Oct 2026 15:48:27 UTC

Distrust compromised intermediate certificates in crypto/x509

cve-program · CVE-2026-111943 · Published

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 7 Nov 08:57 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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