Critical severity9.1NVD Advisory· Published Apr 9, 2026· Updated Apr 22, 2026
CVE-2026-34179
CVE-2026-34179
Description
In Canonical LXD versions 4.12 through 6.7, the doCertificateUpdate function in lxd/certificates.go does not validate the Type field when handling PUT/PATCH requests to /1.0/certificates/{fingerprint} for restricted TLS certificate users, allowing a remote authenticated attacker to escalate privileges to cluster admin.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/canonical/lxdGo | >= 0.0.0-20210305023314-538ac3df036e, <= 0.0.0-20260226085519-736f34afb267 | — |
Affected products
2- ghsa-coordsRange: >= 0.0.0-20210305023314-538ac3df036e, <= 0.0.0-20260226085519-736f34afb267
Patches
Vulnerability mechanics
References
4- github.com/canonical/lxd/pull/17936nvdIssue TrackingPatchWEB
- github.com/advisories/GHSA-c3h3-89qf-jqm5ghsaADVISORY
- github.com/canonical/lxd/security/advisories/GHSA-c3h3-89qf-jqm5nvdThird Party AdvisoryExploitWEB
- nvd.nist.gov/vuln/detail/CVE-2026-34179ghsaADVISORY
News mentions
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