Central Dogma: SSH host-key verification permanently disabled in Git mirror (SshGitMirror)

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

8.8 · CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:L · score source

EPSS

• CVE-2026-11745: 0.22% estimated exploitation activity in the next 30 days; percentile 12.47 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Vulnerability Central Dogma's Git mirror SSH client installs an Apache MINA SSHD ServerKeyVerifier lambda that returns true unconditionally for every outbound SSH connection used by git+ssh:// mirrors. The accompanying lines disable the knownhosts and ~/.ssh/config fallbacks, and a repo-wide search confirms that no host-key pinning mechanism (no acceptedHostKeys, knownHosts, KnownHostsServerKeyVerifier, StaticServerKeyVerifier, or RequiredServerKeyVerifier) exists anywhere in server-mirror-git/. Operators have no opt-in way to enable verification. Every outbound mirror connection blindly trusts whatever host key the remote presents. Evidence File: server-mirror-git/src/main/java/com/linecorp/centraldogma/server/internal/mirror/SshGitMirror.java Lines 143-160 (especially 149) on branch main @ commit d64a5151: Verification: - Read confirmed on 2026-05-21 against main @ d64a5151. - A multi-agent code audit verified that no operator-facing pinning field exists on SshKeyCredential,…

Published by the source

11 Sep 2026, 20:45 UTC

Last modified by the source

11 Sep 2026, 21:00 UTC

Source last checked

26 Oct 2026, 16:55 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-vjfw-cpmh-xwv3

2. Revision 2 · amended · 25 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-vjfw-cpmh-xwv3

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# Patch Next advisory brief: CVE-2026-11745

Advisory: Central Dogma: SSH host-key verification permanently disabled in Git mirror (SshGitMirror)
IDs: CVE-2026-11745, GHSA-vjfw-cpmh-xwv3
Record: https://patchnext.com/advisories/cve-2026-11745 (revision 3, source checked 26 Oct 2026, 16:55 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: com.linecorp.centraldogma:centraldogma-server-mirror-git 0.84.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven com.linecorp.centraldogma:centraldogma-server-mirror-git: affected < 0.84.0; fixed in 0.84.0

## Suggested inspection (read-only)
- Maven com.linecorp.centraldogma:centraldogma-server-mirror-git: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on com.linecorp.centraldogma:centraldogma-server-mirror-git.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-vjfw-cpmh-xwv3 (OSV record GHSA-vjfw-cpmh-xwv3 lists affected ranges: Maven com.linecorp.centraldogma:centraldogma-server-mirror-git >=0 <0.84.0 (fixed))
- Verified: https://github.com/advisories/GHSA-vjfw-cpmh-xwv3 (GitHub-reviewed advisory GHSA-vjfw-cpmh-xwv3 lists affected ranges: Maven com.linecorp.centraldogma:centraldogma-server-mirror-git >=0 <0.84.0)

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