USN-8133-1: pyjwt Ubuntu

CVSS: UnknownPublished
Published 30-03-2026Last modified 30-06-2026

Vulnerability summary

USN-8133-1 is a vulnerability in pyjwt Ubuntu with no CVSS score yet.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1

Timeline

  1. 30-03-2026
    PublishedVulnerability first disclosed.
  2. 30-06-2026
    Last modifiedVulnerability information updated.

Description

pyjwt vulnerability It was discovered that PyJWT did not validate the critical header parameter, contrary to the RFC specification expectations. A remote attacker could possibly use this issue to bypass certain authentication checks and restrictions.

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu1 product
  • pyjwt< 1.3.0-1ubuntu0.1+esm1 | < 1.5.3+ds1-1ubuntu0.1+esm1 | < 1.7.1-2ubuntu2.1+esm1 | < 2.3.0-1ubuntu0.3 | < 2.7.0-1ubuntu0.1 | < 2.10.1-2ubuntu0.1

1 vendor · 1 product

References

2 links