CVE-2026-102946

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.11% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 1.5% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD analysis status

Deferred. NVD last modified this record on 2026-10-15.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-15 18:28Z13 DAYS AGO

Last updated

2026-10-15 19:53Z13 DAYS AGO

Reserved

2026-09-29

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

• CWE-290Authentication Bypass by SpoofingBase
• CWE-345Insufficient Verification of Data AuthenticityClass
• CWE-347Improper Verification of Cryptographic SignatureBase

Data version

5.2

Document digest

0a37951f58ee9a0eb8663612835dbd5f60a71e6e29ec765a727a32e72d51ee95

• github.comhttps://github.com/authlib/joserfc/security/advisories/GHSA-4pp3-559j-c5c2x_refsource_CONFIRM
• github.comhttps://github.com/authlib/joserfc/commit/f409f8f058225d7686acab6546c94593e4c1bfbex_refsource_MISC
• github.comhttps://github.com/authlib/joserfc/releases/tag/1.7.4x_refsource_MISC