PyJWT: Public keys in DER form are accepted as HMAC secrets, bypassing the CVE-2022-29217 guard

SummaryHMACAlgorithm.preparekey blocks asymmetric keys from being used as HMAC secrets by searching for text markers only. It looks for -----BEGIN and for an ssh- prefix. The same key in DER form is binary ASN.1 and has neither marker, so it passes the check and is used as an HMAC secret.An...

GHSA-FFC3-869F-JXW9 PyJWT: Asymmetric-PEM detection bypass: whitespace/line-ending-mutated public keys skip the HS/asymmetric confusion guard

Prerequisites both conditions must hold; both are deployment properties, not attacker-controlled at request time: - The jwt.decode allow-list mixes an HMAC algorithm with an asymmetric one, e.g. algorithms="ES256", "HS256" the RFC 8725 footgun the guard exists to backstop. - The verification key ...

PyJWT: Public keys in DER form are accepted as HMAC secrets, bypassing the CVE-2022-29217 guard

Summary HMACAlgorithm.preparekey blocks asymmetric keys from being used as HMAC secrets by searching for text markers only. It looks for -----BEGIN and for an ssh- prefix. The same key in DER form is binary ASN.1 and has neither marker, so it passes the check and is used as an HMAC secret. An...

GHSA-P4G4-X82P-Q773 PyJWT: Public keys in DER form are accepted as HMAC secrets, bypassing the CVE-2022-29217 guard

Summary HMACAlgorithm.preparekey blocks asymmetric keys from being used as HMAC secrets by searching for text markers only. It looks for -----BEGIN and for an ssh- prefix. The same key in DER form is binary ASN.1 and has neither marker, so it passes the check and is used as an HMAC secret. An...

CLSA-2026-1786944250 TuxCare security update for pyjwt (2 CVEs)

TuxCare rebuilt pyjwt to address 2 CVEs. Fixed in 2.8.0.post3+tuxcare...

python311-PyJWT-2.10.1-2.1 on GA media (moderate)

python311-PyJWT-2.10.1-2.1 on GA media Announcement ID: openSUSE-SU-2025:14987-1 Rating: moderate Cross-References: CVE-2022-29217 CVSS scores: CVE-2022-29217 SUSE : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Affected Products: openSUSE Tumbleweed An update that solves one vulnerability can...

Linux Distros Unpatched Vulnerability : CVE-2022-29217

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 Python implementation of RFC 7519. PyJWT supports multiple different JWT signing algorithms. With JWT, an attacker submitting the JWT token can choos...

Updated python-authlib packages fix security vulnerability

Authlib before 1.3.1 has algorithm confusion with asymmetric public keys. Unless an algorithm is specified in a jwt.decode call, HMAC verification is allowed with any asymmetric public key. This is similar to CVE-2022-29217 and CVE-2024-33663...

RHEL 9 : python-jwt (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 9 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched. - python-jwt: Key confusion through non-blocklisted public key formats CVE-2022-29217 Note that Nessus has not tested...

RHEL 8 : python-jwt (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 8 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched. - python-jwt: Key confusion through non-blocklisted public key formats CVE-2022-29217 Note that Nessus has not tested...

python-jose algorithm confusion with OpenSSH ECDSA keys

python-jose through 3.3.0 has algorithm confusion with OpenSSH ECDSA keys and other key formats. This is similar to CVE-2022-29217...

GHSA-6C5P-J8VQ-PQHJ python-jose algorithm confusion with OpenSSH ECDSA keys

python-jose through 3.3.0 has algorithm confusion with OpenSSH ECDSA keys and other key formats. This is similar to CVE-2022-29217...

PYSEC-2024-232

python-jose through 3.3.0 has algorithm confusion with OpenSSH ECDSA keys and other key formats. This is similar to CVE-2022-29217...

CVE-2024-33663

python-jose through 3.3.0 has algorithm confusion with OpenSSH ECDSA keys and other key formats. This is similar to CVE-2022-29217...

CVE-2024-33663

The python-jose library (versions through 3.5.0 ) is vulnerable to algorithm confusion during HMAC initialization. The root cause is a failure to properly validate asymmetric keys, specifically accepting DER-encoded public keys that lack PEM armor or SSH prefixes. This allows an attacker possessi...

SUSE: Security Advisory (SUSE-SU-2023:0794-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Medium: python-jwt

Issue Overview: A vulnerability was found in python-jwt. This issue happens when PyJWT supports multiple different JWT signing algorithms. This flaw allows an attacker submitting the JWT token to choose the used signing algorithm, leading to key confusion through non-blocklisted public key format...

Amazon Linux 2023 : python3-jwt, python3-jwt+crypto (ALAS2023-2023-076)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-076 advisory. A vulnerability was found in python-jwt. This issue happens when PyJWT supports multiple different JWT signing algorithms. This flaw allows an attacker submitting the JWT token to choose the used signin...

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : python-PyJWT (SUSE-SU-2023:0794-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2023:0794-1 advisory. - CVE-2022-29217: Fixed Key confusion through non-blocklisted public key formats bsc1199756. - Update in...

SUSE-SU-2023:0794-1 Security update for python-PyJWT

This update for python-PyJWT fixes the following issues: - CVE-2022-29217: Fixed Key confusion through non-blocklisted public key formats bsc1199756. - Update in SLE-15 bsc1199282, jscPM-3243, jscSLE-24629 - Update to 2.4.0 bsc1199756 - Explicit check the key for ECAlgorithm - Don't use implicit...