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Advisory record · GHSA-94jr-7pqp-xhcq

Tekton Pipeline: Git Resolver Unsanitized Revision Parameter Enables git Argument Injection Leading to RCE

CVSS 7.5 HighEPSS 0.0079 · 56th percentile

Published by the GitHub Advisory Database at 21 Apr 2026, 20:28 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/tektoncd/pipelineGo>=1.10.0, <1.11.1 || >=1.7.0, <1.9.3 || >=1.4.0, <1.6.2 || >=1.2.0, <1.3.4 || >=1.0.0, <1.0.21.11.1, 1.9.3, 1.6.2, 1.3.4, 1.0.2
Identifiers
GHSA-94jr-7pqp-xhcq · CVE-2026-40938 · GO-2026-5272
Weakness (CWE)
CWE-88
Tags
Published
21 Apr 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The Tekton Pipeline Git resolver passes the user-supplied revision parameter to git fetch without checking for a leading dash, so it can be treated as a git flag. Affected versions are 1.0.0 to before 1.0.2, 1.2.0 to before 1.3.4, 1.4.0 to before 1.6.2, 1.7.0 to before 1.9.3, and 1.10.0 to before 1.11.1. An attacker who can submit resolution requests may be able to run an arbitrary binary on the resolver pod, which the source says could expose cluster Secrets. Upgrade to 1.0.2, 1.3.4, 1.6.2, 1.9.3, or 1.11.1, depending on your release line.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0079, the 56th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:13 UTC First seen by agentprime
  2. 31 Oct 2026, 14:13 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.