lumapps-sdk (>=1.0.0b13, <=1.0.0b18) potentially affected by CVE-2025-61920 via authlib (0.14.1)

authlib PYPI version 0.14.1 is affected by a known vulnerability. The following packages have a transitive dependency on authlib and may be impacted: - lumapps-sdk =1.0.0b13, =1.0.0b18 Source cves: CVE-2025-61920 Source advisory: OSV:GHSA-PQ5P-34CR-23V9...

authutils (5.0.3) potentially affected by CVE-2025-61920 via authlib (0.14.2)

authlib PYPI version 0.14.2 is affected by a known vulnerability. The following packages have a transitive dependency on authlib and may be impacted: - authutils 5.0.3 Source cves: CVE-2025-61920 Source advisory: OSV:GHSA-PQ5P-34CR-23V9...

authlib-gino (>=0.1.0, <=0.3.0), cnmcclient (0.4.3) +14 more potentially affected by CVE-2025-61920 via authlib (0.14.3)

authlib PYPI version 0.14.3 is affected by a known vulnerability. The following packages have a transitive dependency on authlib and may be impacted: - authlib-gino =0.1.0, =0.1.2, =0.4.0, =0.1.2, =1.0.0b7, =0.2.0, =1.0.0, =7.0.8.dev28841, =3.5.6.dev19088, =5.1.1.dev24106 and more Source cves:...

bastion-key-client (>=1.0.1, <=1.4.0), fabric-am-handlers (>=0.11.0, <=1.4.0b2) +5 more potentially affected by CVE-2025-61920 via authlib (0.15.2)

authlib PYPI version 0.15.2 is affected by a known vulnerability. The following packages have a transitive dependency on authlib and may be impacted: - bastion-key-client =1.0.1, =0.11.0, =0.14.0, =0.4.0, =0.9.0, =1.0.0b1, =1.0.0 Source cves: CVE-2025-61920 Source advisory: OSV:GHSA-PQ5P-34CR-23V...

cumulusci (>=3.32.0, <=3.37.0.dev0), lumapps-sdk (>=1.1.3b5, <=2.0.3) +3 more potentially affected by CVE-2025-61920 via authlib (0.15.3)

authlib PYPI version 0.15.3 is affected by a known vulnerability. The following packages have a transitive dependency on authlib and may be impacted: - cumulusci =3.32.0, =1.1.3b5, =0.1.0, =0.53.1, =0.1.0, =0.1.9 Source cves: CVE-2025-61920 Source advisory: OSV:GHSA-PQ5P-34CR-23V9...

aad-fastapi (>=1.0.0, <=1.1.2), aad-fastapi-dl37 (1.0.3) +11 more potentially affected by CVE-2025-61920 via authlib (0.15.4)

authlib PYPI version 0.15.4 is affected by a known vulnerability. The following packages have a transitive dependency on authlib and may be impacted: - aad-fastapi =1.0.0, =0.0.1, =1.0.2, =1.0.2, =0.1.9, =3.37.0, =1.0.0, =2.6.0.dev1, =0.1.1, =0.4.0, =14.0.3, =14.8.2 Source cves: CVE-2025-61920...

annotell-auth (>=1.2.0, <=1.6.1), apicrud (>=0.0.59, <=0.3.6) +36 more potentially affected by CVE-2025-61920 via authlib (0.15.6)

authlib PYPI version 0.15.6 is affected by a known vulnerability. The following packages have a transitive dependency on authlib and may be impacted: - annotell-auth =1.2.0, =0.0.59, =0.5.0, =5.0.0b1, =0.1.0, =2.1.4, =0.1.1, =0.1.1, =0.1.0, =0.3.10, =0.1.0, =0.0.1, =0.7.2, =0.9.4 and more Source...

aad-fastapi-dl37 (>=1.0.0, <=1.0.2), agentstack-cli (>=0.4.0rc1, <=0.4.3) +159 more potentially affected by CVE-2025-61920 via authlib (>=1.0.0b2, <=1.6.4)

authlib PYPI version =1.0.0b2, =1.0.0, =0.4.0rc1, =0.1.0, =1.3.0a20250904, =1.2.0a20250730, =1.2.0a20250730, =0.0.0, =1.7.0, =0.0.1, =0.1.0, =1.0.3, =2.0.0, =0.16.0, =0.33.0, =0.43.0 and more Source cves: CVE-2025-61920 Source advisory: SNYK:PYTHON-AUTHLIB-13535080...

aad-fastapi-dl37 (>=1.0.0, <=1.0.2), agentstack-cli (>=0.4.0rc1, <=0.4.3) +159 more potentially affected by CVE-2025-61920 via authlib (>=1.0.0b2, <=1.6.4)

authlib PYPI version =1.0.0b2, =1.0.0, =0.4.0rc1, =0.1.0, =1.3.0a20250904, =1.2.0a20250730, =1.2.0a20250730, =0.0.0, =1.7.0, =0.0.1, =0.1.0, =1.0.3, =2.0.0, =0.16.0, =0.33.0, =0.43.0 and more Source cves: CVE-2025-61920 Source advisory: GHSA-PQ5P-34CR-23V9...

authx (>=0.2.0, <=0.9.1), cumulusci (>=3.48.0, <=3.55.0.dev1) +4 more potentially affected by CVE-2025-61920 via authlib (0.15.5)

authlib PYPI version 0.15.5 is affected by a known vulnerability. The following packages have a transitive dependency on authlib and may be impacted: - authx =0.2.0, =3.48.0, =0.19.0, =1.0.1, =3.3.2 Source cves: CVE-2025-61920 Source advisory: OSV:GHSA-PQ5P-34CR-23V9...

aad-fastapi-dl37 (>=1.0.0, <=1.0.2), agentstack-cli (>=0.4.0rc1, <=0.4.3) +159 more potentially affected by CVE-2025-61920 via authlib (>=1.0.0b2, <=1.6.4)

authlib PYPI version =1.0.0b2, =1.0.0, =0.4.0rc1, =0.1.0, =1.3.0a20250904, =1.2.0a20250730, =1.2.0a20250730, =0.0.0, =1.7.0, =0.0.1, =0.1.0, =1.0.3, =2.0.0, =0.16.0, =0.33.0, =0.43.0 and more Source cves: CVE-2025-61920 Source advisory: OSV:GHSA-PQ5P-34CR-23V9...

Authlib is vulnerable to Denial of Service via Oversized JOSE Segments

Summary Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes. During verification, Authlib decodes and parses the full input before it is rejected, driving...

Allocation of Resources Without Limits or Throttling

Overview authlib is a library in building OAuth and OpenID Connect servers. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the extractsegment and extractheader processes. An unauthenticated attacker can exhaust system resources and...

DEBIAN-CVE-2025-61920

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes...

CVE-2025-61920

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes...

UBUNTU-CVE-2025-61920

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes...

CVE-2025-61920 Authlib is vulnerable to Denial of Service via Oversized JOSE Segments

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes...

aad-fastapi (>=1.0.0, <=1.1.2), aad-fastapi-dl37 (>=1.0.0, <=1.0.3) +225 more potentially affected by CVE-2025-61920 via authlib (>=0.10.0, <=1.6.4)

authlib PYPI version =0.10.0, =1.0.0, =1.0.0, =0.0.1, =1.0.2, =1.0.2, =0.4.0rc1, =0.1.0, =1.3.0a20250904, =1.2.0a20250730, =1.2.0a20250730, =0.0.0, =1.2.0, =0.0.1, =0.1.0, =0.2.1 and more Source cves: CVE-2025-61920 Source advisory: MEND:CVE-2025-61920...

CVE-2025-61920 Authlib is vulnerable to Denial of Service via Oversized JOSE Segments

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes...

CVE-2025-61920 Authlib is vulnerable to Denial of Service via Oversized JOSE Segments

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.5, Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes...