CVE-2026-39396

medium

Published 2026-04-21 · Modified 2026-04-23

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

6.5

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS v4 NEW

—

not yet in upstream

VIR risk

6.5

Description

OpenBao: Decompression Bomb via Unbounded Copy in OCI Plugin Extraction (DoS)

Predictions

Exploit likelihood

75%

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 with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/openbao/openbao	`<0.0.0-20260420180337-2b2a901aa9f7`	`0.0.0-20260420180337-2b2a901aa9f7`

Application impact

Vendor	Product	Versions	Fixed
openbao	openbao	`{"endExcluding":"2.5.3"}`	`2.5.3`

References

CWEs

CWE-400 CWE-674 CWE-770

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.