Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the HMAC secret guard of jose/backends/native.py, which rejects a key only when ispemformatkey or issshkeykey holds and so never catches DER-encoded binary SubjectPublicKeyInfo public...

CVE-2026-85394

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

CVE-2026-85394

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

UBUNTU-CVE-2026-85394

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

CVE-2026-85394

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

CVE-2026-85394 python-jose through 3.5.0 Algorithm Confusion via DER-encoded Public Key as HMAC Secret

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

CVE-2026-85394 python-jose through 3.5.0 Algorithm Confusion via DER-encoded Public Key as HMAC Secret

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

CVE-2026-85394 python-jose through 3.5.0 Algorithm Confusion via DER-encoded Public Key as HMAC Secret

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

CVE-2026-85394

python-jose through version 3.5.0 contains an algorithm confusion vulnerability in its HMAC key validation logic. The library fails to properly reject DER-encoded public keys that lack PEM armor or SSH prefixes, allowing them to be accepted as HMAC secrets. An attacker who possesses the service's...

EUVD-2026-70671

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

CVE-2026-85394: Improper Verification of Cryptographic Signature

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

CVE-2020-7494

creationtimestamp| type| source ---|---|--- 2026-09-01 17:01:12+00:00| seen| https://t.me/cissp/1528 2026-09-02 01:05:01+00:00| seen| https://t.me/cissp/1528 2026-09-12 01:00:05+00:00| published-proof-of-concept| https://t.me/cissp/1528 2026-09-13 00:01:01+00:00| published-proof-of-concept|...

CLSA-2026-1769645545 TuxCare security update for python-jose (1 CVE)

TuxCare rebuilt python-jose to address 1 CVE. Fixed in 3.3.0.post2+tuxcare...

CLSA-2025-1758845544 TuxCare security update for python-jose (1 CVE)

TuxCare rebuilt python-jose to address 1 CVE. Fixed in 3.3.0.post1+tuxcare...

PT-2026-73553

TuxCare rebuilt python-jose to address 1 CVE. Fixed in 3.3.0.post1+tuxcare...

PT-2026-73716

TuxCare rebuilt python-jose to address 1 CVE. Fixed in 3.3.0.post2+tuxcare...

ROS-20260209-73-0034

A vulnerability in the python-jose library is related to incorrect processing of highly compressed input data. Exploitation of the vulnerability could allow an attacker acting remotely to cause a denial of service...

python-jose Incorrect Processing DoS

The vulnerability of the python-jose library is related to incorrect processing of highly compressed input data. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

SUSE CVE-2024-29370

In python-jose 3.3.0 specifically jwe.decrypt, a vulnerability allows an attacker to cause a Denial-of-Service DoS condition by crafting a malicious JSON Web Encryption JWE token with an exceptionally high compression ratio. When this token is processed by the server, it results in significant...

CVE-2024-29370

A flaw was found in python-jose. This vulnerability allows an attacker to cause a Denial-of-Service DoS condition by crafting a malicious JSON Web Encryption JWE token with an exceptionally high compression ratio, leading to significant memory allocation and processing time during decompression...