CVE-2026-9358— postcss AST Serialization container.js toString recursion
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-9358
Vulnerability Information
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Vulnerability Title
postcss AST Serialization container.js toString recursion
Source: NVD (National Vulnerability Database)
Vulnerability 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)."
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
未经控制的递归
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | postcss | 7.1.0 | cpe:2.3:a:postcss:postcss:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-9358
| # | POC Description | Source Link | Shenlong Link |
|---|
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Proof of Concept for CVE-2026-9358 (1)
News Coverage for CVE-2026-9358 (1)
Same Patch Batch · n/a · 2026-05-24 · 5 CVEs total
| CVE-2026-9376 | 6.3 MEDIUM | JPress UCenter Article Submission Endpoint doWriteSave improper authorization |
| CVE-2026-9365 | 5.6 MEDIUM | Ettercap GG Dissector ec_gg.c FUNC_DECODER heap-based overflow |
| CVE-2026-9373 | 3.7 LOW | JeecgBoot OpenAPI Endpoint call improper authentication |
| CVE-2026-9357 | 3.5 LOW | vBulletin Login cross site scripting |
IV. Related Vulnerabilities
Same vendor: n/a
- CVE-2026-9422
KLiK SocialMediaWebsite HTTP POST Request Parameter injectio - CVE-2026-9421
KLiK SocialMediaWebsite File upload.inc.php uniqid unrestric - CVE-2026-9420
KLiK SocialMediaWebsite HTTP GET Request Parameter injection - CVE-2026-9376
JPress UCenter Article Submission Endpoint doWriteSave impro - CVE-2026-9373
JeecgBoot OpenAPI Endpoint call improper authentication
V. Comments for CVE-2026-9358
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