CVE-2026-61847

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Source
https://cve.org/CVERecord?id=CVE-2026-61847
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-61847.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-61847
Aliases
Downstream
CGA (56)
DEBIAN (1)
Published
2026-10-30T18:44:22Z
Modified
2026-11-01T02:47:39Z
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

Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when the :preserve_comments option is not enabled, which is the default, Crass discards CSS comments by recursively consuming the next token. An attacker-provided stylesheet containing a very large number of adjacent comments can cause excessive recursion and trigger a SystemStackError, denying service to the parsing application. Preserving comments avoids this recursive path. This issue is fixed in version 1.0.7.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-674"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61847.json"
}
References

Affected packages

Git / github.com/rgrove/crass

Affected ranges

Type
GIT
Repo
https://github.com/rgrove/crass
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
cfd5daa3ce23cd7b2356acf90ecb7a02defe002c
Fixed
25d78cc607c54262e9d43ea1930f3ba5bb03dfb5
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.0.7"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "25d78cc607c54262e9d43ea1930f3ba5bb03dfb5"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v1.0.7",
            "range": [
                {
                    "fixed": "cfd5daa3ce23cd7b2356acf90ecb7a02defe002c"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v0.*
v0.0.1
v0.0.2
v0.1.0
v0.2.0
v0.2.1
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-61847.json"