TI-2026-21454 Aliases CVE-2026-26974 GHSA-w7h5-55jg-cq2f

Sylde has Improper Control of Generation of Code

LOW 34CWE-829Published 2026-02-20 · Updated 2026-02-20

Key facts

Attack vector: Network
Privileges required: None
User interaction: Passive
Attack complexity: High
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-829.

Summary

Slyde is a program that creates animated presentations from XML. In versions 0.0.4 and below, Node.js automatically imports **/*.plugin.{js,mjs} files including those from node_modules, so any malicious package with a .plugin.js file can execute arbitrary code when installed or required. All projects using this loading behavior are affected, especially those installing untrusted packages. This issue has been fixed in version 0.0.5. To workaround this issue, users can audit and restrict which packages are installed in node_modules.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00608 49th percentileScored 2026-11-07

Fix Fixed Slyde (Tygo-van-den-Hurk): 0.0.5@tygo-van-den-hurk/slyde (npm): 0.0.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Tygo-van-den-Hurk	Slyde	before 0.0.5	0.0.5	Patch available	CNA
—	@tygo-van-den-hurk/slyde (npm)	before 0.0.5	0.0.5	Patch available	GHSA-w7h5-55jg-cq2f

Slyde VendorTygo-van-den-Hurk Affected before 0.0.5 Fixed in 0.0.5 Patch available CNA
@tygo-van-den-hurk/slyde (npm) Vendor— Affected before 0.0.5 Fixed in 0.0.5 Patch available GHSA-w7h5-55jg-cq2f

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:slyde.js:slyde::::::node.js::*	before 0.0.5	Vulnerable	Slyde.js

cpe:2.3:a:slyde.js:slyde:*:*:*:*:*:node.js:*:* Versions before 0.0.5 Vulnerable ·Slyde.js

Remediation

Fix · CNA Slyde (Tygo-van-den-Hurk) Fixed in 0.0.5
Fix · GHSA-w7h5-55jg-cq2f @tygo-van-den-hurk/slyde (npm) Fixed in 0.0.5 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-26974
2026-10-03 Alias added: GHSA-w7h5-55jg-cq2f
2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 1

https://github.com/Tygo-van-den-Hurk/Slyde/commit/e4c215b061e44fd2ead805de34d72642a710af60

Advisory 2

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences