Vulnerability in Connorskees Grass
CVE-2026-14651
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."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (4.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Connorskees Grass — versions 0.13.0, 0.13.1, 0.13.2
Weakness classification (CWE)
References
- vuldb.com/vuln/376164 (technical-description, vdb-entry)
- vuldb.com/vuln/376164/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-14651 (third-party-advisory)
- vuldb.com/submit/846667 (third-party-advisory)
- github.com/connorskees/grass/issues/117 (issue-tracking, exploit)
- github.com/connorskees/grass/ (product)
Frequently asked questions
- What is CVE-2026-14651?
- CVE-2026-14651 is a low-severity vulnerability in Connorskees Grass, classified under Improper Resource Shutdown or Release. CVSS score: 3.3/10. Published 2026-07-04.
- How severe is CVE-2026-14651?
- Low severity. CVSS v3 base score is 3.3 out of 10.