Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Authlib: Open Redirect in Authlib OIDC Implicit/Hybrid Authorization
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N R C L L N 6.1 .0025 16.5 —
AFFECTED
Product Versions Fixed
authlib < 1.6.12 – —
TIMELINE
May 7 Reserved by GitHub_M
May 27 EXPLOIT PUBLISHED — CVE-2026-44681 (authlib). Public exploit reference added.
May 27 Published (CNA: GitHub_M)
Description
Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.12 and 1.7.1, an unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an attacker-chosen URL by submitting an authorization request that omits the openid scope. This vulnerability is fixed in 1.6.12 and 1.7.1.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| May 7, 2026 | Reserved | Reserved by GitHub_M |
| May 27, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-44681 (authlib). Public exploit reference added. |
| May 27, 2026 | Published | Published (CNA: GitHub_M) |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| authlib | authlib | — | < 1.6.12 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-44681 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.