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TI-2024-28450 Aliases CVE-2024-42482GHSA-xj87-mqvh-88w2

fish-shop/syntax-check Improper Neutralization of Delimiters

Priority LOW 30CWE-140Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

fish-shop/syntax-check is a GitHub action for syntax checking fish shell files. Improper neutralization of delimiters in the `pattern` input (specifically the command separator `;` and command substitution characters `(` and `)`) mean that arbitrary command injection is possible by modification of the input value used in a workflow. This has the potential for exposure or exfiltration of sensitive information from the workflow runner, such as might be achieved by sending environment variables to an external entity. It is recommended that users update to the patched version `v1.6.12` or the latest release version `v2.0.0`, however remediation may be possible through careful control of workflows and the `pattern` input value used by this action.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00821 57th percentileScored 2026-11-07
Fix Fixed syntax-check (fish-shop): 1.6.12fish-shop/syntax-check (GitHub Actions): 1.6.12

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
fish-shopsyntax-checkbefore 1.6.121.6.12Patch availableCNA
—fish-shop/syntax-check (GitHub Actions)before 1.6.121.6.12Patch availableGHSA-xj87-mqvh-88w2
  • syntax-check Vendorfish-shop Affected before 1.6.12 Fixed in 1.6.12 Patch available CNA
  • fish-shop/syntax-check (GitHub Actions) Vendor— Affected before 1.6.12 Fixed in 1.6.12 Patch available GHSA-xj87-mqvh-88w2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fish-shop:syntax-check:*:*:*:*:*:*:*:*before 1.6.12Vulnerablefish-shop
  • cpe:2.3:a:fish-shop:syntax-check:*:*:*:*:*:*:*:* Versions before 1.6.12 Vulnerable ·fish-shop

Remediation

  • Fix · CNA syntax-check (fish-shop) Fixed in 1.6.12
  • Fix · GHSA-xj87-mqvh-88w2 fish-shop/syntax-check (GitHub Actions) Fixed in 1.6.12 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-42482
  2. 2026-10-03 Alias added: GHSA-xj87-mqvh-88w2

References

Patch 2

Advisory 2

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences