GHSA-JQ35-7PRP-9V3F PyJWT: Algorithm allow-list bypass when decoding with `PyJWK` / `PyJWKClient` keys

!NOTE Scored assuming a deployment where algorithm policy functions as an authentication/authorization boundary. In deployments where the algorithm policy enforces crypto agility only, the practical confidentiality impact is lower and the issue is closer to an integrity-of-policy-enforcement bug...

RockyLinux 10 : fence-agents (RLSA-2026:19138)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:19138 advisory. pyjwt: PyJWT accepts unknown crit header extensions RFC 7515 ?4.1.11 MUST violation CVE-2026-32597 pyasn1: pyasn1 Vulnerable to Denial of Service via...

fence-agents security update

An update is available for fence-agents. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The fence-agents packages provide a collection of scripts for handling...

RLSA-2026:19355 Important: fence-agents security update

The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster. Security Fixes: cryptography: cryptography Subgroup Attack Due to Missing Subgroup...

SUSE CVE-2026-48524

PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient.getsigningkey forces a fresh HTTP request to the JWKS endpoint for every JWT with an unknown kid value, with no rate limiting. Since kid comes from the unverified token header, an attacker can trigger unlimited...

fence-agents security update

An update is available for fence-agents. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The fence-agents packages provide a collection of scripts for handling...

RLSA-2026:19138 Important: fence-agents security update

The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster. Security Fixes: pyjwt: PyJWT accepts unknown crit header extensions RFC 7515 ?4.1.11 MU...

Linux Distros Unpatched Vulnerability : CVE-2026-48523

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PyJWT is a JSON Web Token implementation in Python. From 2.9.0 to 2.12.1, there is a verifier-side algorithm allow-list bypass when jwt.decode or...

Linux Distros Unpatched Vulnerability : CVE-2026-48522

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient passes its uri argument directly to urllib.request.urlopen which uses Python...

Linux Distros Unpatched Vulnerability : CVE-2026-48525

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PyJWT is a JSON Web Token implementation in Python. From 2.8.0 to 2.12.1, when verifying detached JWS tokens using the unencoded-payload option b64: false, RFC...

360solutions-bc-mcp (>=0.5.3 <=0.5.6), 3di-cmd-client (>=0.0.1a0 <=0.0.3) +781 more potentially affected by CVE-2026-48526 via pyjwt (>=2.0.0 <=2.12.1)

pyjwt PYPI version =2.0.0, =0.5.3, =0.0.1a0, =1.1.1, =0.1.0, =0.1.1, =0.1.31, =0.1.0, =1.5.0, =0.1.0, =0.2.9, =0.5.0, =1.89.5, =1.420.4 and more Source cves: CVE-2026-48526 Source advisory: SNYK:PYTHON-PYJWT-17053408...

360solutions-bc-mcp (>=0.5.3 <=0.5.6), 3di-cmd-client (>=0.0.1a0 <=0.0.3) +1507 more potentially affected by CVE-2026-48522 via pyjwt (>=0.2.1 <=2.12.1)

pyjwt PYPI version =0.2.1, =0.5.3, =0.0.1a0, =0.1.1, =1.0.0, =2.0.0, =1.1.1, =0.8.44.4, =0.1.0, =0.1.1, =0.1.1, =0.1.5 - affo-user-service =1.0.4 and more Source cves: CVE-2026-48522 Source advisory: OSV:PYSEC-2026-175...

360solutions-bc-mcp (>=0.5.3 <=0.5.6), 3di-cmd-client (>=0.0.1a0 <=0.0.3) +1507 more potentially affected by CVE-2026-48524 via pyjwt (>=0.2.1 <=2.12.1)

pyjwt PYPI version =0.2.1, =0.5.3, =0.0.1a0, =0.1.1, =1.0.0, =2.0.0, =1.1.1, =0.8.44.4, =0.1.0, =0.1.1, =0.1.1, =0.1.5 - affo-user-service =1.0.4 and more Source cves: CVE-2026-48524 Source advisory: OSV:PYSEC-2026-177...

UBUNTU-CVE-2026-48522

PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient passes its uri argument directly to urllib.request.urlopen which uses Python stdlib's default OpenerDirector registering HTTPHandler, HTTPSHandler, FTPHandler, FileHandler, and DataHandler. There is currently no...

CVE-2026-48523 PyJWT: Algorithm allow-list bypass when decoding with `PyJWK` / `PyJWKClient` keys

PyJWT is a JSON Web Token implementation in Python. From 2.9.0 to 2.12.1, there is a verifier-side algorithm allow-list bypass when jwt.decode or jwt.decodecomplete are called with a PyJWK key. The token header alg is checked against the caller-supplied algorithms allow-list, but signature...

Important: Red Hat Security Advisory: fence-agents security update

An update for fence-agents is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is availabl...

fence-agents security update

An update is available for fence-agents. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The fence-agents packages provide a collection of scripts for handling...

RockyLinux 10 : fence-agents (RLSA-2026:13916)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:13916 advisory. pyjwt: PyJWT accepts unknown crit header extensions RFC 7515 ?4.1.11 MUST violation CVE-2026-32597 pyasn1: pyasn1 Vulnerable to Denial of Service via...

ALSA-2026:13916 Important: fence-agents security update

The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster. Security Fixes: pyjwt: PyJWT accepts unknown crit header extensions RFC 7515 ?4.1.11 MU...

Debian dla-4564 : python3-jwt - security update

The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4564 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-4564-1 [email protected] https://www.debian.org/lts/security/...