Dashboard / CVE-2026-35041

CVE-2026-35041

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2026-04-09 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

fast-jwt provides fast JSON Web Token (JWT) implementation. From 5.0.0 to 6.2.0, a denial-of-service condition exists in fast-jwt when the allowedAud verification option is configured using a regular expression. Because the aud claim is attacker-controlled and the library evaluates it against the supplied RegExp, a crafted JWT can trigger catastrophic backtracking in the JavaScript regex engine, resulting in significant CPU consumption during verification. This vulnerability is fixed in 6.2.1.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
nearform fast-jwt 5.0.0 – 6.2.1

References & Advisories (4)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.26%
Raw Score 0.002620
Percentile 18.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00262
2026-10-28
0.00262

Intelligence Sources

nvd ref →

External Links