CVE-2026-35042

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 ImpactpartialSuccessful exploitation gives limited 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

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 5.2% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/I:H/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-04-06 17:02Z5 MO AGO

Last updated

2026-04-07 15:59Z5 MO AGO

Reserved

2026-03-31

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-345Insufficient Verification of Data AuthenticityClass
• CWE-636Not Failing Securely ('Failing Open')Class

Data version

5.2

Document digest

36d21484493c856d011133f742bdca064d9cf6600c8316079da31eea372e08c2

• github.comhttps://github.com/nearform/fast-jwt/security/advisories/GHSA-hm7r-c7qw-ghp6x_refsource_CONFIRM
• www.rfc-editor.orghttps://www.rfc-editor.org/rfc/rfc7515.html#section-4.1.11x_refsource_MISC