CVE-2026-34042

HIGH EPSS 36.5%
Published Mar 31, 20263mo ago · Modified Jun 17, 20262w ago
8.2 CVSS 3.1
High
Find Similar
Published Mar 31, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

act is a project which allows for local running of github actions. Prior to version 0.2.86, act's built in actions/cache server listens to connections on all interfaces and allows anyone who can connect to it including someone anywhere on the internet to create caches with arbitrary keys and retrieve all existing caches. If they can predict which cache keys will be used by local actions, they can create malicious caches containing whatever files they please most likely allowing arbitrary remote code execution within the docker container. This issue has been patched in version 0.2.86.

CVSS Details

Base Score
8.2
Exploitability
2.8
Impact
4.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality High
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
36.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

References 4

  • code.forgejo.org https://code.forgejo.org/forgejo/runner/issues/294
  • github.com https://github.com/nektos/act/commit/c28c27e141e8b54f9853de82f421ee09846751f7
  • github.com https://github.com/nektos/act/releases/tag/v0.2.86
  • github.com https://github.com/nektos/act/security/advisories/GHSA-x34h-54cw-9825

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.