Vulnerability · Published Nov 4, 2026 · Assigned by GitHub_M

CVE-2026-76826tsParticles: Generated release notes can execute shell commands in the stable publish workflow

High 7.5

In plain English

A high-severity OS command injection in tsparticles from tsparticles. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 4.0)7.5High

Exploit odds (30 days)0.3%top 76.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

tsParticles is a TypeScript library for creating highly customizable particle animations. From 4.0.0 until 4.3.2, the stable publish workflow interpolates steps.release.outputs.body directly into an echo command in Bash source before writing RAW_RELEASE.md. Contributor-controlled shell metacharacters in generated release-note text can therefore execute when a maintainer starts a stable release, allowing modification of generated artifacts or workspace scripts and affecting later release steps that hold GITHUB_TOKEN and write permissions. This issue is fixed in version 4.3.2.

Affected products (as reported)

Vendor	Product	Versions
tsparticles	tsparticles	>= 4.0.0, < 4.3.2

Weakness: CWE-78 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://github.com/tsparticles/tsparticles/security/advisories/GHSA-gw8q-3x59-mjjx x_refsource_CONFIRM
https://github.com/tsparticles/tsparticles/pull/5888 x_refsource_MISC
https://github.com/tsparticles/tsparticles/commit/d3b5672bd61bb847abfa21193c34eabf7aba6896 x_refsource_MISC