Answer in brief
CVE-2026-63131 records a Medium severity (CVSS 6.0) vulnerability in OpenBao LIST ACL bypass: a trailing-slash LIST request skips a more-specific deny rule (unported Vault v2.0.3 fix). The current sources do not mark it as known exploited. The current feed maps openbao/openbao (generic), github.com/openbao/openbao (go), github.com/openbao/openbao (go), github.com/openbao/openbao (go) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps openbao/openbao (generic), github.com/openbao/openbao (go), github.com/openbao/openbao (go), github.com/openbao/openbao (go) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| openbao/openbaogeneric | <2.6.0 | 2.6.0 |
| github.com/openbao/openbaogo | <0.0.0-20260713133043-f58d848c139e | 0.0.0-20260713133043-f58d848c139e |
| github.com/openbao/openbaogo | >=0.1.0,<=1.1.5 | Not reported |
| github.com/openbao/openbaogo | >=0 <0.0.0-20260713133043-f58d848c139e | 0.0.0-20260713133043-f58d848c139e |
| github.com/openbao/openbaogo | >=0.1.0 | Not reported |
Published upstream
Sep 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 22, 2026
OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao's vault/policy/acl.go could evaluate a broader wildcard ACL grant before more-specific trailing-wildcard ACL paths with capabilities = ["deny"] for a LIST operation. When a parent path permitted LIST and a child path was denied, the trailing-slash lookup could therefore allow listing the denied path. Other operation types are outside the repository advisory's affected scope. This issue is fixed in version 2.6.0.
Quoted source text, attributed separately from HOL analysis.