CVE-2024-25126

Rack ReDos in content type parsing (2nd degree polynomial)

HIGH
7.5
CVSS Score
Published: February 28, 2024 at 11:28 PM UTC
Updated: June 17, 2026 at 07:15 AM UTC
3 products affected across 3 vendorsDebian LinuxRackRack

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Severity
HIGH7.5
Exploit prediction
EPSS 35%
SSVC
PoC

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.4 ≤ v < 2.2.8.13.0.0 ≤ v < 3.0.9.10.43.0.0
Affected range stops below 2.2.8.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.0.9.1, so it looks safe — our inference, not a vendor statement
Rack· Rackrubygems
95%
v < 2.2.8.1v < 3.0.9.10.4 ≤ v < 2.2.8.13.0.0 ≤ v < 3.0.9.1
Affected range stops below 2.2.8.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.0.9.1, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1333

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