CVE-2022-35954: The GitHub Actions ToolKit provides a set of packages to make creating actions easier

Routine

MEDIUM 5.0UPGRADE

CVE-2022-35954 is a medium-severity flaw (CVSS 5.0) affecting toolkit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The GitHub Actions ToolKit provides a set of packages to make creating actions easier. The `core.exportVariable` function uses a well known delimiter that attackers can use to break out of that specific variable and assign values to other arbitrary variables. Workflows that write untrusted values to the `GITHUB_ENV` file may cause the path or other environment variables to be modified without the intention of the workflow or action author. Users

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-77, CWE-74
Published	2022-08-15
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: github

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-08-15 11:21 UTCPublished CVE record published
2026-06-17 04:52 UTCUpdated Record last modified

github toolkit UPGRADE

Affected: < 1.9.1

Fixed in: 1.9.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls toolkit

2. UPGRADE to 1.9.1

npm install toolkit@">=1.9.1"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-35954?

toolkit: upgrade to 1.9.1. Exact commands for each OS are on this page.

Is CVE-2022-35954 being exploited?

CVE-2022-35954 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-35954 affect?

CVE-2022-35954 affects toolkit. Severity is medium (CVSS 5.0). The GitHub Actions ToolKit provides a set of packages to make creating actions easier. The `core.exportVariable` function uses a well known delimiter that attackers can use to break out of that specific variable and assign values to other a

How urgent is CVE-2022-35954?

Priority 31/100. No elevated risk signals yet.

Software pages

GitHub vulnerabilities

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References

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