CVE-2026-114619

mediumpriority · track · 0OT risk · elevatedEPSS 0.002 · 5 %ile

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.16% (5th) EPSS

CVSS 4.6 · medium

Is it mine?

0 products

Check your exposure

Who says so?

— sources

EPSS · scored 2026-10-26

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, OpenIDImplicitGrant.validate_authorization_request() checks the client-controlled raw request.payload.scope for openid after the parent grant has filtered allowed scopes into request.scope. A registered client permitted an ID token response type but not the openid scope can add openid to the request, obtain user consent, and receive a signed ID token containing the user's subject and allowed profile claims. Authorization code flow and deployments that allow openid for every client permitted an ID token response are not affected. In authlib/oidc/core/grants/implicit.py, OpenIDImplicitGrant.validate_authorization_request() checks request.payload.scope instead of the filtered request.scope. This issue is fixed in version 1.9.0.

cvss

Technical severity, 0–10. One row per scoring source.

4.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.6mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:Nsecondary · security-advisories@github.comexploitability 2.1 · impact 2.5

v3.14.2mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USprimary

affected products

Products and version ranges known to be affected.

No affected products recorded.

sources

Which sources assert this record, and when.

NVD CVE.org MITRE

published 2026-10-22modified 2026-10-23

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+4993 more

references (4) nvd

External citations — patches, advisories, analysis.

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