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TI-2022-21169 Aliases CVE-2022-43358GHSA-57fv-hr9v-7rfx

Stack overflow vulnerability in ast_selectors.cpp: in function…

Priority HIGH 72CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Stack overflow vulnerability in ast_selectors.cpp: in function Sass::ComplexSelector::has_placeholder in libsass:3.6.5-8-g210218, which can be exploited by attackers to cause a denial of service (DoS).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01517 74th 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

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sass-lang:libsass:3.6.5-8-g210218:*:*:*:*:*:*:*3.6.5-8-g210218VulnerableSass-lang
  • cpe:2.3:a:sass-lang:libsass:3.6.5-8-g210218:*:*:*:*:*:*:* Versions 3.6.5-8-g210218 Vulnerable ·Sass-lang

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-43358
  2. 2026-10-03 Alias added: GHSA-57fv-hr9v-7rfx

References

Exploit 1

Advisory 1

Other 1

  • 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
  • TI-2018-08362 An issue was discovered in LibSass <3.5.3. CVSS 3.0HIGH 8.8
See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences