Review reviewHigh

CVE-2026-48526

jpadilla pyjwt, Red Hat Ansible Automation Platform 2.6 for RHEL 9, Red Hat Enterprise Linux 10

PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, when the verifier is decoding JSON Web Tokens, while supporting both asymmetric and HMAC algorithms, the library does not validate use of JSON Web Keys in HMAC algorithm, allowing attacker to use the issuer public key as the secret key for HMAC algorithm. This vulnerability is fixed in 2.13.0.

CVSS: 7.4
EPSS: 0.40%
CISA KEV: Not listed
Published: 2026.05.29

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.40%

Technical severityCVSS 7.4

Vulnerability overview

Affected product and versions

Product: jpadilla pyjwt, Red Hat Ansible Automation Platform 2.6 for RHEL 9, Red Hat Enterprise Linux 10
Affected versions: >= < 2.13.0, < 2.13.0
Fixed versions: 2.13.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that jpadilla pyjwt, Red Hat Ansible Automation Platform 2.6 for RHEL 9, Red Hat Enterprise Linux 10 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE: CWE-287, CWE-347