Vulnerability · Published Jul 4, 2026 · Assigned by VulDB
CVE-2026-14651connorskees grass visitor 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).
Official description
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."
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | sass-grass | no fix listed | DEBIAN-CVE-2026-14651 |
| Ubuntu:26.10 | sass-grass | no fix listed | UBUNTU-CVE-2026-14651 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| 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:C
References
- VDB-376164 | connorskees grass visitor denial of service vdb-entry, technical-description
- VDB-376164 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-14651 | CVE Analysis and Report third-party-advisory
- Submit #846667 | grass 0.13.4 Asymmetric Resource Consumption third-party-advisory
- https://github.com/connorskees/grass/issues/117 exploit, issue-tracking
- https://github.com/connorskees/grass/ product