CVE-2026-35040

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

0.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 32.0% of scored records. A rank, not a probability.

NVD base score

5.3 (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:N/A:L

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-26.

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

2026-04-09 14:52Z6 MO AGO

Last updated

2026-04-13 20:03Z6 MO AGO

Reserved

2026-03-31

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-440Expected Behavior ViolationBase
• CWE-697Incorrect ComparisonPillar

Data version

5.2

Document digest

696e805b47cf275dd2af9e71945e33ab0a536b7e38f8eb6c9446dea726b5827d

• github.comhttps://github.com/nearform/fast-jwt/security/advisories/GHSA-3j8v-cgw4-2g6qx_refsource_CONFIRM
• github.comhttps://github.com/nearform/fast-jwt/pull/593x_refsource_MISC
• github.comhttps://github.com/nearform/fast-jwt/commit/18d25904e4617e8753526d1b3ab5a2cccdea726ax_refsource_MISC
• github.comhttps://github.com/nearform/fast-jwt/releases/tag/v6.2.1x_refsource_MISC