CVE-2026-14650

LOW

connorskees grass UTF-8 Character raw_to_parse_error denial of service

Title source: cna
STIX 2.1

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."

References (6)

Core 6
Core References
Exploit exploit issue-tracking
https://github.com/connorskees/grass/issues/116
Vdb Entry, Technical Description vdb-entry technical-description
VDB-376163 | connorskees grass UTF-8 Character raw_to_parse_error denial of service
https://vuldb.com/vuln/376163
Signature, Permissions Required signature permissions-required
VDB-376163 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/376163/cti
Third Party Advisory third-party-advisory
CVE-2026-14650 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-14650
Third Party Advisory third-party-advisory
Submit #846665 | grass 0.13.4 Denial of Service
https://vuldb.com/submit/846665

Scores

CVSS v3 3.3
EPSS 0.0012
EPSS Percentile 1.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-404
Status published
Products (5)
connorskees/grass 0.13.0
connorskees/grass 0.13.1
connorskees/grass 0.13.2
connorskees/grass 0.13.3
connorskees/grass 0.13.4
Published Jul 04, 2026
Tracked Since Jul 05, 2026