CVE Explorer

CVE-2026-41070

openvpn-auth-oauth2 is a plugin/management interface client for OpenVPN server to handle an OIDC based single sign-on (SSO) auth flows. From version 1.26.3 to before version 1.27.3, when openvpn-auth-oauth2 is deployed in the experimental plugin mode (shared library loaded by OpenVPN via the plugin directive), clients that do not support WebAuth/SSO (e.g., the openvpn CLI on Linux) are incorrectly admitted to the VPN despite being denied by the authentication logic. The default management-interf

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5f88fd602e127bd43b5c6d41d13f7cd99899d208aefbc214107715d81a9aed92

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"openvpn-auth-oauth2","vendor":"jkroepke","versions":[{"status":"affected","version":">= 1.26.3, < 1.27.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:21ce1a0a975efd95c6e3c8c7e71c86ac508c66ff07a20f6b1e9ecfeda685d3b4 · sha256:006489da0c98b3ba… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:21ce1a0a975efd95c6e3c8c7e71c86ac508c66ff07a20f6b1e9ecfeda685d3b4 · sha256:006489da0c98b3ba… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:21ce1a0a975efd95c6e3c8c7e71c86ac508c66ff07a20f6b1e9ecfeda685d3b4 · sha256:006489da0c98b3ba… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/jkroepke/openvpn-auth-oauth2/commit/36f69a6c67c1054da7cbfa04ced3f0555127c8f2","tags":["x_refsource_MISC"],"url":"https://github.com/jkroepke/openvpn-auth-oauth2/commit/36f69a6c67c1054da7cbfa04ced3f0555127c8f2"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:21ce1a0a975efd95c6e3c8c7e71c86ac508c66ff07a20f6b1e9ecfeda685d3b4 · sha256:006489da0c98b3ba… · /containers/cna/references/1

{"name":"https://github.com/jkroepke/openvpn-auth-oauth2/security/advisories/GHSA-246w-jgmq-88fg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/jkroepke/openvpn-auth-oauth2/security/advisories/GHSA-246w-jgmq-88fg"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:21ce1a0a975efd95c6e3c8c7e71c86ac508c66ff07a20f6b1e9ecfeda685d3b4 · sha256:006489da0c98b3ba… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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