postcss AST Serialization container.js toString recursion_CVE-2026-9358

5.3 / 10

MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Description

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)."

Basic Information

ID CVE-2026-9358

Source VulDB

Published May 24, 2026 at 05:30

Affected Product

Vendor n/a

Product postcss

Version 7.1.0

Affected Versions n/a postcss 7.1.0
n/a postcss 7.1.1

CWE Classification

CWE-674 CWE-404

References

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    "lastseen": "",
    "description": "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).\"",
    "published": "2026-05-24T05:30:09.671Z",
    "modified": "2026-05-24T05:30:09.671Z",
    "type": "cve",
    "title": "postcss AST Serialization container.js toString recursion",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/365321\nhttps://vuldb.com/vuln/365321/cti\nhttps://vuldb.com/submit/813080\nhttps://gist.github.com/bx33661/581e3a38134601c04e19b4dfc9b459b9",
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    "cwe": [
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    "cvelist": null,
    "sourceData": "n/a postcss 7.1.0\nn/a postcss 7.1.1",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
        "version": "4.0"
    },
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