1sealsemantic last-mile verification

Research / Finding

Tekton: git resolver path traversal

F-TEKTON-001-001

Read the full technical write-up →

Root cause, affected code and disclosure timeline.

At a glance

Conditions
A tenant able to create requests using the git resolver can read files accessible to the resolver pod, including its credentials.
What to do
Use the listed patched release for your branch. Until updated, restrict access to the git resolver and reduce its service-account permissions. The upstream broad affected range overlaps its own patched list.

1seal reading guide, reviewed 2026-09-25 against the linked records. Not a new vendor assessment or a device rollout check.

Fix and severity by source

Source assessments remain separate. Different CVSS versions are not a revision of one another. Code fixes, released versions and deployed updates are distinct evidence.

A tenant reaches cluster-wide secrets through a path-boundary failure in a shared resolver.

Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.

Read the evidence · View in research browse

Recorded evidence

9.6critical
CVE-2026-33211CVEtektoncd/pipeline

Path traversal in Tekton Pipelines git resolver allows reading arbitrary files from the resolver pod

Fixed in: v1.0.1, v1.3.3, v1.6.1, v1.9.2, v1.10.2

patched
details
Finding IDs
F-TEKTON-001-001
CVE
CVE-2026-33211
GHSA
GHSA-j5q5-j9gm-2w5c
Status
patched
Fixed in
v1.0.1, v1.3.3, v1.6.1, v1.9.2, v1.10.2
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CVE registry state
PUBLISHED
CVE state checked
Upstream title
Path traversal in Tekton Pipelines git resolver allows reading arbitrary files from the resolver pod
Upstream CWE
CWE-22
Upstream publication
Upstream updated
Metadata fetched
Upstream @1seal credit
@1seal: reporter (accepted)

F-TEKTON-001-001: File / path escapes. Git resolver traversal reaches files beyond the tenant's intended root. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-TEKTON-001-001

Security area (1seal assessment): Authorization. Git resolver traversal reaches files beyond the tenant's intended root. Reviewed 24 Sep 2026.

9.6critical
1SEAL-2026-0031SEAL advisorytektoncd/pipeline

path traversal in git resolver — tenant to cluster-wide secret access

Fixed in: v1.0.1, v1.3.3, v1.6.1, v1.9.2, v1.10.2

Fix recordednot counted
details
Finding IDs
F-TEKTON-001-001
CVE
CVE-2026-33211
GHSA
GHSA-j5q5-j9gm-2w5c
Status
patched
CWE
CWE-22
Fixed in
v1.0.1, v1.3.3, v1.6.1, v1.9.2, v1.10.2
Disclosure date
Recorded severity
critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

F-TEKTON-001-001: File / path escapes. Git resolver traversal reaches files beyond the tenant's intended root. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.

Mechanism source for F-TEKTON-001-001

Security area (1seal assessment): Authorization. Git resolver traversal reaches files beyond the tenant's intended root. Reviewed 24 Sep 2026.

Clarify or correct this record privately. The email subject includes the finding ID. For an existing case, continue the agreed private thread. Do not post unpublished vulnerability details in public issues. Research disclosure policy.

How this page groups evidence

This identifier groups recorded evidence; it is not an additional CVE, independent-vulnerability count or guarantee of vendor confirmation. Fixed code, released versions, attribution and independent discovery are distinct claims. Absent metadata means not recorded, not disproved. Counting rules.