CVE-2026-55776

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Source
https://cve.org/CVERecord?id=CVE-2026-55776
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55776.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55776
Aliases
Downstream
Related
Published
2026-09-15T15:43:29Z
Modified
2026-09-17T03:47:22Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
OpenBao: Transit secrets engine crashes on key creation with `derived: true` for asymmetric key types
Details

OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an authenticated OpenBao caller with write access to transit/keys/* could terminate the server process by setting derived to true while the type parameter selected rsa-, ecdsa-, or ed25519. The Transit policy creation path in builtin/logical/transit/backend.go and sdk/helper/keysutil/policy.go could reach an error path that double-unlocked a mutex while handling this invalid asymmetric derived-key combination, causing a panic, no HTTP response, process exit, and denial of service. JSON and HCL key-creation requests can express the triggering combination. This issue is fixed in version 2.5.5.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-617"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55776.json"
}
References

Affected packages

Git / github.com/openbao/openbao

Affected ranges

Type
GIT
Repo
https://github.com/openbao/openbao
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
bb17827f3e33779a10166f7d0e61b191c0facef9
Fixed
db57c62602b25da12951f3f0edb888e7c4da61e5
Fixed
028992583c693c4de6350b8aa52ff85e30375a99
Fixed
03e3a243b6f07d17c60ce0a182adee7cf4c424eb
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.5.5"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

api/auth/approle/v0.*
api/auth/approle/v0.1.0
api/auth/approle/v0.1.1
api/auth/approle/v0.2.0
api/auth/approle/v0.3.0
api/auth/approle/v0.4.0
api/auth/approle/v0.4.1
api/auth/approle/v1.*
api/auth/approle/v1.1.0-development20240408
api/auth/approle/v2.*
api/auth/approle/v2.0.1
api/auth/approle/v2.2.0
api/auth/approle/v2.3.0
api/auth/approle/v2.4.0
api/auth/approle/v2.5.0
api/auth/approle/v2.5.1
api/auth/approle/v2.6.0
api/auth/aws/v0.*
api/auth/aws/v0.1.0
api/auth/aws/v0.2.0
api/auth/aws/v0.3.0
api/auth/aws/v0.4.0
api/auth/aws/v0.4.1
api/auth/aws/v1.*
api/auth/aws/v1.1.0-development20240408
api/auth/azure/v0.*
api/auth/azure/v0.1.0
api/auth/azure/v0.2.0
api/auth/azure/v0.3.0
api/auth/azure/v0.4.0
api/auth/azure/v0.4.1
api/auth/azure/v1.*
api/auth/azure/v1.1.0-development20240408
api/auth/gcp/v0.*
api/auth/gcp/v0.1.0
api/auth/gcp/v0.2.0
api/auth/gcp/v0.3.0
api/auth/gcp/v0.4.0
api/auth/gcp/v0.4.1
api/auth/gcp/v1.*
api/auth/gcp/v1.1.0-development20240408
api/auth/jwt/v2.*
api/auth/jwt/v2.4.0
api/auth/jwt/v2.5.0
api/auth/jwt/v2.5.1
api/auth/jwt/v2.6.0
api/auth/kubernetes/v1.*
api/auth/kubernetes/v1.1.0-development20240408
api/auth/kubernetes/v2.*
api/auth/kubernetes/v2.0.1
api/auth/kubernetes/v2.2.0
api/auth/kubernetes/v2.3.0
api/auth/kubernetes/v2.4.0
api/auth/kubernetes/v2.5.0
api/auth/kubernetes/v2.5.1
api/auth/kubernetes/v2.6.0
api/auth/ldap/v1.*
api/auth/ldap/v1.1.0-development20240408
api/auth/ldap/v2.*
api/auth/ldap/v2.0.1
api/auth/ldap/v2.2.0
api/auth/ldap/v2.3.0
api/auth/ldap/v2.4.0
api/auth/ldap/v2.5.0
api/auth/ldap/v2.5.1
api/auth/ldap/v2.6.0
api/auth/userpass/v0.*
api/auth/userpass/v0.1.0
api/auth/userpass/v0.2.0
api/auth/userpass/v0.3.0
api/auth/userpass/v0.4.0
api/auth/userpass/v0.4.1
api/auth/userpass/v1.*
api/auth/userpass/v1.1.0-development20240408
api/auth/userpass/v2.*
api/auth/userpass/v2.0.1
api/auth/userpass/v2.2.0
api/auth/userpass/v2.3.0
api/auth/userpass/v2.4.0
api/auth/userpass/v2.5.0
api/auth/userpass/v2.5.1
api/auth/userpass/v2.6.0
api/v1.*
api/v1.0.1
api/v1.0.2
api/v1.0.3
api/v1.0.4
api/v1.1.1
api/v1.100.0-development20240408
api/v1.2.0
api/v1.3.1
api/v1.5.0
api/v1.6.0
api/v1.7.0
api/v1.7.1
api/v1.7.2
api/v1.8.0
api/v1.8.1
api/v1.8.2
api/v1.8.3
api/v1.9.0
api/v1.9.1
api/v1.9.2
api/v2.*
api/v2.0.1
api/v2.1.0
api/v2.2.0
api/v2.3.0
api/v2.4.0
api/v2.5.0
api/v2.5.1
api/v2.6.0
Other
before-plugin-removal
dev-namespaces-base-20250215
dev-namespaces-base-20250311
dev-namespaces-base-20250424
sdk/v0.*
sdk/v0.1.10
sdk/v0.1.11
sdk/v0.1.12
sdk/v0.1.13
sdk/v0.1.8
sdk/v0.1.9
sdk/v0.2.1
sdk/v0.3.0
sdk/v0.4.1
sdk/v0.5.0
sdk/v0.5.1
sdk/v0.5.3
sdk/v0.6.0
sdk/v0.6.1
sdk/v0.6.2
sdk/v0.7.0
sdk/v0.8.0
sdk/v0.9.0
sdk/v0.9.1
sdk/v1.*
sdk/v1.100.0-development20240408
sdk/v2.*
sdk/v2.0.1
sdk/v2.1.0
sdk/v2.2.0
sdk/v2.3.0
sdk/v2.4.0
sdk/v2.5.0
sdk/v2.5.1
sdk/v2.6.0
sdk/v2.6.1
v2.*
v2.0.0
v2.0.0-alpha20240329
v2.0.0-beta20240618
v2.1.0-beta20241114
v2.1.0-beta20241114.1
v2.1.0-beta20241114.2
v2.1.0-beta20241114.3
v2.2.0-beta20250213
v2.3.0-beta20250528
v2.4.0
v2.5.0
v2.5.0-beta20251125
v2.5.1
v2.5.2
v2.5.3
v2.5.4
v2.6.0-beta20260622

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55776.json"