Chainguard Academy (edu) integrate-platform-docs composite action interpolates inputs into shell commands

Summary

CVECVE-2026-105767
StatePUBLISHED
Assignerchainguard
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-05 20:17:20 UTC
Updated2026-10-05 20:17:20 UTC
DescriptionImproper Neutralization of Special Elements used in an OS Command in the integrate-platform-docs composite GitHub Action of Chainguard Academy (edu) from commit 7375a80caabcc31c33ec90f29687ed78c13d16ff before commit fb0efb2537d326ab18c07d620875b8ed2a4b39f3 allows an actor who controls the project_id or storage_bucket inputs to execute arbitrary shell commands on the GitHub Actions runner, because the inputs are interpolated directly into Bash gcloud storage cp commands in several steps via ${{ inputs.* }} expressions. The only in-repository caller passed repository secrets and ran only on trusted triggers, so no untrusted input was known to reach the vulnerable steps.

Risk And Classification

Primary CVSS: v4.0 2.1 LOW from 82cea9a6-e9e3-46fe-bdb0-3673de380178

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-78 | CWE-78 CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')


VersionSourceTypeScoreSeverityVector
4.082cea9a6-e9e3-46fe-bdb0-3673de380178Secondary2.1LOWCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS2.1LOWCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
3.182cea9a6-e9e3-46fe-bdb0-3673de380178Secondary3.3LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
3.1CNACVSS3.3LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
High
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Chainguard Chainguard Academy Edu affected 7375a80caabcc31c33ec90f29687ed78c13d16ff fb0efb2537d326ab18c07d620875b8ed2a4b39f3 git GitHub Actions

References

ReferenceSourceLinkTags
github.com/chainguard-dev/edu/commit/fb0efb2537d326ab18c07d620875b8ed2a4... 82cea9a6-e9e3-46fe-bdb0-3673de380178 github.com
github.com/chainguard-dev/edu/pull/3471 82cea9a6-e9e3-46fe-bdb0-3673de380178 github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Steve Beattie (https://github.com/stevebeattie) (en)

CNA: SunnyR (https://github.com/SunnyR) (en)

CNA: Chainguard (https://chainguard.dev) (en)

Additional Advisory Data

SourceTimeEvent
CNA2023-01-20T14:42:00.000ZAction introduced with inline input interpolation (chainguard-dev/edu#227)
CNA2026-06-26T18:13:00.000ZFix merged (chainguard-dev/edu#3471)

Solutions

CNA: Fixed in commit fb0efb2537d326ab18c07d620875b8ed2a4b39f3, which passes the inputs to the shell through environment variables instead of expression interpolation. Workflows that reference this action at an older ref should update to fb0efb2537d326ab18c07d620875b8ed2a4b39f3 or later.

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