CVE-2026-34040
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
8.0
Description
Moby has AuthZ plugin bypass when provided oversized request bodies
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Fixed | 28.5.2+dfsg4-2 |
| forky | Fixed | 28.5.2+dfsg4-2 |
| bullseye | Affected | — |
| bookworm | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/moby/moby | <29.3.1 | 29.3.1 |
| Go | github.com/docker/docker | <29.3.1 | 29.3.1 |
| Go | github.com/moby/moby/v2 | <2.0.0-beta.8 | 2.0.0-beta.8 |
| Go | github.com/docker/docker | | |
| Go | github.com/moby/moby | | |
| GO | github.com/docker/docker | < 29.3.1 | 29.3.1 |
| GO | github.com/moby/moby | < 29.3.1 | 29.3.1 |
| GO | github.com/moby/moby/v2 | < 2.0.0-beta.8 | 2.0.0-beta.8 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| gcp | | |
References
- https://security-tracker.debian.org/tracker/CVE-2026-34040
- https://github.com/moby/moby/security/advisories/GHSA-v23v-6jw2-98fq
- https://github.com/moby/moby/security/advisories/GHSA-x744-4wpc-v9h2
- https://nvd.nist.gov/vuln/detail/CVE-2026-34040
- https://github.com/moby/moby/commit/e89edb19ad7de0407a5d31e3111cb01aa10b5a38
- https://docs.docker.com/engine/extend/plugins_authorization
- https://github.com/moby/moby
- https://github.com/moby/moby/releases/tag/docker-v29.3.1
- https://www.suse.com/security/cve/CVE-2026-34040.html
- https://github.com/advisories/GHSA-x744-4wpc-v9h2
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.