GHSA-wwpr-jff3-395c

Source

https://github.com/advisories/GHSA-wwpr-jff3-395c

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-wwpr-jff3-395c/GHSA-wwpr-jff3-395c.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-wwpr-jff3-395c

Aliases

CVE-2026-61847

Published

2026-10-29T16:35:23Z

Modified

2026-10-29T16:45:06Z

Severity

6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L CVSS Calculator

Summary

Crass: A large number of adjacent CSS comments can trigger a SystemStackError

Details

Impact

When the :preserve_comments option is not enabled (which is the default behavior), Crass discards CSS comments by recursively consuming the next token. An attacker who provides a stylesheet containing a very large number of adjacent comments can cause excessive recursion and trigger a SystemStackError.

Patches

This is fixed in Crass 1.0.7, which no longer recurses when discarding comments.

Workarounds

Set the :preserve_comments option to true if this is acceptable to your use case (recursion doesn't occur when comments are preserved).

Database specific

{
    "cwe_ids":  [
        "CWE-674"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-10-29T16:35:23Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}

References

Affected packages

RubyGems / crass

Package

Name: crass
Purl: pkg:gem/crass

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.0.7

Affected versions

0.*

0.0.1

0.0.2

0.1.0

0.2.0

0.2.1

1.*

1.0.0

1.0.1

1.0.2

1.0.3

1.0.4

1.0.5

1.0.6

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-wwpr-jff3-395c/GHSA-wwpr-jff3-395c.json"