CVE-2026-9358

A vulnerability was determined in postcss up to 7.1.1. Affected is the function toString of the file src/selectors/container.js of the component AST Serialization. Executing a manipulation can lead to uncontrolled recursion. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor explains, that according to his definition "DoS on server-side on user-generated CSS is low risk for us (since most users compile own CSS with PostCSS)."

CVSS v3 4.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://gist.github.com/bx33661/581e3a38134601c04e19b4dfc9b459b9
https://vuldb.com/submit/813080
https://vuldb.com/vuln/365321
https://vuldb.com/vuln/365321/cti

Configurations

No configuration.

History

24 May 2026, 06:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-24 06:16

Updated : 2026-05-26 19:54

NVD link : CVE-2026-9358

Mitre link : CVE-2026-9358

CVE.ORG link : CVE-2026-9358

JSON object : View

Products Affected

No product.

CWE

CWE-404

Improper Resource Shutdown or Release

CWE-674

Uncontrolled Recursion

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