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GitHub Actions undici could be exploited to run code
published 3 months ago
Summary
The undici library used in GitHub Actions had three security weaknesses that could let an attacker execute code or disrupt operations. These issues have been fixed in the updated version 5.29.0-tuxcare.4. Apply the TuxCare update to keep your workflows safe.
What to do
- Update GitHub Actions undici to version 5.29.0-tuxcare.4.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| TuxCare:npm | GitHub Actions | undici |
>= 5.29.0-tuxcare.0, < 5.29.0-tuxcare.4 Fix: upgrade to 5.29.0-tuxcare.4
|
Original advisory text
TuxCare security update for undici (3 CVEs)
TuxCare rebuilt undici to address 3 CVEs. Fixed in 5.29.0-tuxcare.4.
Timeline
Published4 Aug 2026
Updated15 Oct 2026
First seen15 Oct 2026
Sources
CLSA-2026-1775435423 · OSV
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