CVE-2026-34042
act: actions/cache server allows malicious cache injection in github.com/nektos/act
8.2
HIGH
CVSS 3.1
EPSS 0.02%
Description
act: actions/cache server allows malicious cache injection in github.com/nektos/act
How to fix CVE-2026-34042
To remediate CVE-2026-34042, upgrade the affected package to a fixed version below.
- Go/github.com/nektos/act—upgrade to 0.2.86 or later
- Go/github.com/nektos/act—upgrade to 0.2.86 or later
Is CVE-2026-34042 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0.2.86
- from 0, < 0.2.86
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N |