CVE-2024-25126

Rack vulnerability

CVSS

5.3

EPSS

35.4%

EPSS pct

98th

Exploited

No known

Rack is a modular Ruby web server interface. Carefully crafted content type headers can cause Rack’s media type parser to take much longer than expected, leading to a possible denial of service vulnerability (ReDos 2nd degree polynomial). This vulnerability is patched in 3.0.9.1 and 2.2.8.1.

Affected vendor

Rack

Affected product

Rack

CVSS vector

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

Weakness type (CWE)

CWE-1333 — Inefficient Regular Expression Complexity

Published

2024-02-29

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to availability.

Its EPSS score of 35.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2024-25126

Confirm whether Rack Rack is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2024-25126.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2024-25126

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