7.4

CVE-2024-35220: fastify session Insufficient Session Expiration

CVSS: 7.4v3.1HighDeferred
AliasesGHSA-pj27-2xvp-4qxg
Published 21-05-2024Last modified 02-08-2024
Open JSON

Vulnerability summary

CVE-2024-35220 is a high (CVSS 7.4) Insufficient Session Expiration vulnerability in fastify session. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.4% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.45%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-05-2024
    PublishedVulnerability first disclosed.
  2. 02-08-2024
    Last modifiedVulnerability information updated.

Description

@fastify/session is a session plugin for fastify. Requires the @fastify/cookie plugin. When restoring the cookie from the session store, the `expires` field is overriden if the `maxAge` field was set. This means a cookie is never correctly detected as expired and thus expired sessions are not destroyed. This vulnerability has been patched 10.8.0.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.45%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

0.00 pp

From 0.45% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.45%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

@fastify1 product
  • session< 10.9.0
Fastify1 product

2 vendors · 2 products

References

5 links