Low [CVE-2026-14651] Denial of Service vulnerability via local manipulation of compiler functions
This low-severity Red Hat Linux advisory covers CVE-2026-14651.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
A vulnerability has been found in connorskees grass up to 0.13.4. The impacted element is the function grass_compiler::selector::extend/grass_compiler::evaluate::visitor.
The manipulation leads to denial of service. The attack must be carried out locally.
The exploit has been disclosed to the public and may be used. 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, a Sass compiler.
This can lead to the compiler becoming unresponsive or crashing, impacting the availability of the service.
While a DoS is possible through manipulating compiler functions, such as `grass_compiler::selector::extend` or `grass_compiler::evaluate::visitor`, this typically affects build or development environments where local access is already assumed, limiting its broader impact on Red Hat products.
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-835.
Is CVE-2026-14651 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-14651 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-14651?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
Confirm against the vendor advisory before you patch.
- 0.13.4
Official advisory · high-confidence parse· fetched 11 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 11 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 11 days ago·verify at source
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