Dashboard / CVE-2026-35039

CVE-2026-35039

CRITICAL
INFO Priority: 0.02 BB Relevance: 78/100
Published: 2026-04-06 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

fast-jwt provides fast JSON Web Token (JWT) implementation. From 0.0.1 to before 6.2.0, setting up a custom cacheKeyBuilder method which does not properly create unique keys for different tokens can lead to cache collisions. This could cause tokens to be mis-identified during the verification process leading to valid tokens returning claims from different valid tokens and users being mis-identified as other users based on the wrong token. Version 6.2.0 contains a patch.

Weakness Classification (3)

Affected Software (1)

VendorProductVersion
nearform fast-jwt 0.1.0 – 6.1.0

References & Advisories (2)

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.21%
Raw Score 0.002120
Percentile 11.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00212
2026-10-28
0.00212

Intelligence Sources

nvd ref →

External Links