Symlink-following arbitrary write via github_workflows module

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-12567
StatePUBLISHED
AssignerBLSOPS
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-17 23:17:03 UTC
Updated2026-06-22 17:45:43 UTC
DescriptionThe github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.

Risk And Classification

Primary CVSS: v3.1 2.2 LOW from [email protected]

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

EPSS: 0.000910000 probability, percentile 0.006170000 (date 2026-06-25)

Problem Types: CWE-59 | CWE-59 CWE-59 Improper Link Resolution Before File Access ('Link Following')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary2.2LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
3.1CNACVSS2.2LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Black Lantern Security BBOT affected 2.0.0 <=2.8.4 custom Not specified

References

ReferenceSourceLinkTags
github.com/blacklanternsecurity/bbot/commit/16d9c42b6 [email protected] github.com
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