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CVE-2026-39821VulnerabilityPublished Updated

SUSE · Security update for rqlite

Affects SUSESource GCVE Database

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Authoritative record:CVE-2026-39821· Critical 9.6

Not known to be exploited · CVSS 9.6 Critical · fixed in SUSE package updates : patch SUSE http as a priority.

Data as of 5 Nov 2026, 00:44 UTC

CVSS 3.1 base score
9.6Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 1.27.0-rc.3, 1.26.6, 1.25.13 +1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 May 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 5 Nov 2026.

What to do

Upgrade net/http and net/http/internal/http2 to 1.27.0-rc.3, 1.26.6 or 1.25.13; golang.org/x/net/idna to 0.55.0.

Affected software

ProductAffectedFixed in
Go standard librarynet/httpAffected
  • >=1.27.0-0 <1.27.0-rc.3
Fixed in
  • 1.27.0-rc.3
Go standard librarynet/httpAffected
  • >=1.26.0-0 <1.26.6
Fixed in
  • 1.26.6
Go standard librarynet/httpAffected
  • <1.25.13
Fixed in
  • 1.25.13
Go standard librarynet/http/internal/http2Affected
  • >=1.27.0-0 <1.27.0-rc.3
Fixed in
  • 1.27.0-rc.3
Go standard librarynet/http/internal/http2Affected
  • >=1.26.0-0 <1.26.6
Fixed in
  • 1.26.6
Go standard librarynet/http/internal/http2Affected
  • <1.25.13
Fixed in
  • 1.25.13

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

AI-suggested

Apply the security update to rqlite versions 10.0.2 through 10.6.6 as provided by the vendor to address the authentication file vulnerability and other issues. Ensure that user permissions are correctly configured to prevent unauthorized elevation. No additional mitigation is required beyond applying the official update.

Description

This security update for rqlite addresses multiple issues including a security vulnerability related to authentication files that could allow a user with no explicit permissions to gain elevated permissions. The update also improves error handling for various API endpoints, fixes authorization and backup stream handling issues, and includes multiple implementation changes and bug fixes. Correctly configured users are not affected by the elevated permissions issue. The update spans versions from 10.0.2 through 10.6.6 with various incremental fixes and improvements.

References

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