In LibSass 3.5-stable, there is an illegal address access at…
Priority LOW 31CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
In LibSass 3.5-stable, there is an illegal address access at Sass::Parser::parse_css_variable_value_token that will lead to a DoS attack.
Why it matters now
EPSS 0.01151 67th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2018-19218
- 2026-10-03 Alias added: GHSA-cxrv-5xrr-3rp8
References
More Sass-lang Libsass vulnerabilities
- TI-2022-21169 Stack overflow vulnerability in ast_selectors.cpp: in function… CVSS 3.1HIGH 7.5
- TI-2022-21168 Stack overflow vulnerability in ast_selectors.cpp in function… CVSS 3.1HIGH 7.5
- TI-2018-08219 A use-after-free vulnerability exists in handle_error() in sass_context.cpp in LibSass… CVSS 3.0CRITICAL 9.8
- TI-2022-09890 Stack Overflow vulnerability in libsass 3.6.5 via the CompoundSelector::has_real_parent_ref function. CVSS 3.1HIGH 8.8
- TI-2018-14042 In LibSass 3.5.5, a use-after-free vulnerability exists in the SharedPtr class in… CVSS 3.0HIGH 8.8
- TI-2018-08363 An issue was discovered in LibSass through 3.5.4. CVSS 3.0HIGH 8.8
Sources
- CVE-2018-19218 · CVE Program
- CVE-2018-19218 · NVD
- FIRST EPSS
- GHSA-cxrv-5xrr-3rp8 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-19218 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences