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TI-2025-28839 Aliases CVE-2025-45768GHSA-xpf8-484v-j9w6

pyjwt v2.10.1 was discovered to contain weak encryption.

Priority LOW 30CWE-311Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · Low · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-311.

Summary

pyjwt v2.10.1 was discovered to contain weak encryption. NOTE: this is disputed by the Supplier because the key length is chosen by the application that uses the library (admittedly, library users may benefit from a minimum value and a mechanism for opting in to strict enforcement).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00195 9th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pyjwt_project:pyjwt:2.10.1:*:*:*:*:*:*:*2.10.1Vulnerablejpadilla
  • cpe:2.3:a:pyjwt_project:pyjwt:2.10.1:*:*:*:*:*:*:* Versions 2.10.1 Vulnerable ·jpadilla

Remediation

Red Hat 2 advisories

  • RHSA-2026:33154 Released 2026-06-29 · Red Hat rating Important
    Red Hat Ceph Storage
    • Red Hat Ceph Storage 7.1 registry.redhat.io/rhceph/grafana-rhel9, registry.redhat.io/rhceph/rhceph-7-rhel9
  • RHSA-2026:4215 Released 2026-03-10 · Red Hat rating Important
    Red Hat Quay 3.14.6
    • Red Hat Quay 3.14 registry.redhat.io/quay/quay-rhel8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-45768
  2. 2026-10-03 Alias added: GHSA-xpf8-484v-j9w6

References

Other 3

  • TI-2026-65303 Improper signature verification in jpadilla pyjwt CVSS 3.1CRITICAL 9.1
  • TI-2026-65301 PyJWK accepts empty HMAC keys, bypassing PyJWT's empty-key validation CVSS 3.1CRITICAL 9.1
  • TI-2026-65219 PyJWT: Unauthenticated RecursionError DoS in pre-verification payload parse… CVSS 3.1HIGH 7.5
  • TI-2026-65218 PyJWT: PyJWKClient still amplifies unauthenticated JWKS fetches on unknown kid values (incomplete fix of CVE-2026-48524) CVSS 3.1HIGH 7.5
  • TI-2026-25107 PyJWT accepts unknown `crit` header extensions (RFC 7515 §4.1.11 MUST violation) CVSS 3.1HIGH 7.5
  • TI-2026-65310 PyJWT accepts inconsistent OKP x/d JWKs, causing public/private key identity confusion CVSS 3.1HIGH 8.2
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences