DEBIAN-CVE-2026-13311

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-13311
Published: 25 Jun 2026, 05:16
Last modified:30 Jun 2026, 17:00

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.7 HIGH
4.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Jun 2026, 05:16
Published
Vulnerability first disclosed
30 Jun 2026, 17:00
Last Modified
Vulnerability information updated

Description

shell-quote prior to 1.8.5 finalizes parsed tokens in parse() using Array.prototype.concat as a reduce accumulator, which reallocates and copies the entire growing array on every iteration. As a result parse() runs in O(n^2) time relative to the number of input tokens. An attacker who can supply an attacker-controlled string to any code path that calls parse() (no shell metacharacters are required; plain space-separated words suffice) can block the single-threaded Node.js event loop for an extended period with a small input, resulting in a denial of service. There is no code execution or data disclosure; impact is to availability only. Fixed in 1.8.5.

CVSS Metrics

  • v4.0•HIGH•Score: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected Systems

  • debian•node-shell-quote

    all | all | all | < 1.9.0+~1.7.5-1

References (1)