Bug 2528187 (CVE-2026-85394)
| Summary: | CVE-2026-85394 jose: python-jose: python-jose through 3.5.0 Algorithm Confusion via DER-encoded Public Key as HMAC Secret | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | dschmidt, ikhan, jlanda, kshier, rbobbitt, simaishi, stcannon, yguenane |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in python-jose. A remote attacker who obtains the service's public key can exploit an algorithm confusion vulnerability when signature verification algorithms are not strictly restricted. By utilizing a specifically formatted public key as a shared secret key, the attacker can forge valid JSON Web Tokens (JWTs). This flaw allows an attacker to bypass authentication and gain unauthorized access or elevate privileges within the application.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2546038, 2546039, 2546040, 2546041 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-09-03 19:03:08 UTC
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