Medium
python-authlib — security advisory
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.
- Products
- python-authlib
- Affected versions
- 0.15.4-1, 0.15.5-1, 0.15.5-1ubuntu0.1~esm1, 0.15.5-1ubuntu0.1~esm2, 1.2.1-1, 1.3.0-1, 1.3.0-1ubuntu0.1~esm1, 1.3.0-1ubuntu0.1~esm2, 1.5.1-1, 1.5.2-1, 1.6.0-1, 1.6.5-1, 1.6.6-1, 1.6.7-1, 1.6.7-1ubuntu0.1~esm1, 1.7.2-1, 1.7.2-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-44681
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:13 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-44681
python-authlib
Fixed versions: Not specified
python-authlib
Fixed versions: Not specified
python-authlib
Fixed versions: Not specified
python-authlib
Fixed versions: Not specified
python-authlib
Fixed versions: Not specified
Complete source record
{
"id": "0e50590e6ae5f95e5e17ae714986f29b5a734f81a76ec9fdb766130eb6128dec",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-44681",
"method": "structured",
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"summary": "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.",
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"modified": "2026-10-17T12:58:21.113298522Z",
"provider": "osv",
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"https://www.cve.org/CVERecord?id=CVE-2026-44681",
"https://github.com/authlib/authlib/security/advisories/GHSA-r95x-qfjj-fjj2"
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"source_id": "core-osv",
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"published_at": "2026-05-27T20:16:00+00:00"
}