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Vulnerability · Published Jul 4, 2026 · Assigned by VulDB

CVE-2026-14650connorskees grass UTF-8 Character raw_to_parse_error denial of service

Low 3.3

In plain English

A low-severity security flaw in grass from connorskees. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.2%top 94.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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."

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:14sass-grassno fix listedDEBIAN-CVE-2026-14650
Ubuntu:26.10rust-grass-compilerno fix listedUBUNTU-CVE-2026-14650
Ubuntu:26.10sass-grassno fix listedUBUNTU-CVE-2026-14650

Affected products (as reported)

VendorProductVersions
connorskees grass 0.13.00.13.10.13.20.13.30.13.4

Weakness: CWE-404 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

References