Low [CVE-2026-14650] Denial of Service in UTF-8 Character Handler
This low-severity Red Hat Linux advisory covers CVE-2026-14650.
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Summary
A flaw has been found in connorskees grass up to 0.13.4. The affected element is the function grass_compiler::raw_to_parse_error of the component UTF-8 Character Handler.
Executing a manipulation can lead to denial of service. The attack is restricted to local execution.
The exploit has been published and may be used. In Issue #117 with similar structure the project maintainer explains: "DoS vulnerabilities are generally fine in Sass compilers -- they are trivially possible with recursive functions, infinite loops, nested mixins, etc.
The description here is wrong. Compile time is not expected to be linear relative to the input, and the @extend algorithm is definitionally exponential." A flaw was found in Grass.
This could lead to a denial of service, making the system or application unavailable to legitimate users. Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L).
Weakness: CWE-1050.
- 0.13.4
Official advisory · high-confidence parse· fetched 3 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 3 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 3 days ago·verify at source
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