CVE-2020-15272

Shell-injection in git-tag-annotation GitHub action

CRITICAL
9.6
CVSS Score
Published: October 26, 2020 at 06:20 PM UTC
Updated: June 17, 2026 at 02:56 AM UTC
2 products affected across 2 vendorsGit Tag Annotation ActionTag Annotation Action Project Git Tag Annotation Action

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Severity
CRITICAL9.6
Exploit prediction
EPSS 1%

Description

In the git-tag-annotation-action (open source GitHub Action) before version 1.0.1, an attacker can execute arbitrary (*) shell commands if they can control the value of [the `tag` input] or manage to alter the value of [the `GITHUB_REF` environment variable]. The problem has been patched in version 1.0.1. If you don't use the `tag` input you are most likely safe. The `GITHUB_REF` environment variable is protected by the GitHub Actions environment so attacks from there should be impossible. If you must use the `tag` input and cannot upgrade to `> 1.0.0` make sure that the value is not controlled by another Action.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.0.1
Affected range stops below 1.0.1, so it looks safe — our inference, not a vendor statement
v < 1.0.1
Affected range stops below 1.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78

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