CVE-2026-33211 | Tekton Pipelines git resolver has path traversal that allows reading arbitrary files from the resolver pod

Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.1, 1.3.3, 1.6.1, 1.9.2, and 1.10.2, the Tekton Pipelines git resolver is vulnerable to path traversal via the `pathInRepo` parameter. A tenant with permission to create `ResolutionRequests` (e.g. by creating `TaskRuns` or `PipelineRuns` that use the git resolver) can read arbitrary files from the resolver pod's filesystem, including ServiceAccount tokens. The file contents are returned base64-encoded in `resolutionrequest.status.data`. Versions 1.0.1, 1.3.3, 1.6.1, 1.9.2, and 1.10.2 contain a patch.

Published: 2026-03-23 Last update: 2026-06-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-33211 is rated Moderate Risk (53.5/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.57%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-33211

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-30 0.48% 0.57% +0.09%
2 2026-06-15 0.02% 0.48% +0.46%
3 2026-03-24 — 0.02% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-33211

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.6 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.1 5.8 [email protected]
9.6 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.1 5.8 [email protected]
9.6 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.1 5.8 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Weakness enumeration for CVE-2026-33211

GitHub Security Advisory for CVE-2026-33211

GHSA-j5q5-j9gm-2w5c · Severity: critical · Ecosystem: go — Path traversal in Tekton Pipelines git resolver allows reading arbitrary files from the resolver pod

OS Trackers for CVE-2026-33211

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2026-33211

Affected software / configurations for CVE-2026-33211

Vendor Product Version Raw CPE
linuxfoundation tekton_pipelines >= 1.1.0, < 1.3.3 cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*
linuxfoundation tekton_pipelines >= 1.4.0, < 1.6.1 cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*
linuxfoundation tekton_pipelines >= 1.7.0, < 1.9.2 cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*
linuxfoundation tekton_pipelines >= 1.10.0, < 1.10.2 cpe:2.3:a:linuxfoundation:tekton_pipelines:*:*:*:*:*:go:*:*
linuxfoundation tekton_pipelines 1.0.0 cpe:2.3:a:linuxfoundation:tekton_pipelines:1.0.0:*:*:*:*:go:*:*

References for CVE-2026-33211

URL Tags
https://github.com/tektoncd/pipeline/commit/10fa538f9a2b6d01c75138f1ed7ba3da0e34687c Patch
https://github.com/tektoncd/pipeline/commit/318006c4e3a5 Patch
https://github.com/tektoncd/pipeline/commit/3ca7bc6e6dd1d97f80b84f78370d91edaf023cbd Patch
https://github.com/tektoncd/pipeline/commit/961388fcf3374bc7656d28ab58ca84987e0a75ae Patch
https://github.com/tektoncd/pipeline/commit/b1fee65b88aa969069c14c120045e97c37d9ee5e Patch
https://github.com/tektoncd/pipeline/commit/cdb4e1e97a4f3170f9bc2cbfff83a6c8107bc3db Patch
https://github.com/tektoncd/pipeline/commit/ec7755031a183b345cf9e64bea0e0505c1b9cb78 Patch
https://github.com/tektoncd/pipeline/security/advisories/GHSA-j5q5-j9gm-2w5c Patch Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:10026
https://access.redhat.com/errata/RHSA-2026:10066
https://access.redhat.com/errata/RHSA-2026:10125
https://access.redhat.com/errata/RHSA-2026:10155
https://access.redhat.com/errata/RHSA-2026:10158
https://access.redhat.com/errata/RHSA-2026:21931
https://access.redhat.com/errata/RHSA-2026:21932
https://access.redhat.com/errata/RHSA-2026:24484
https://access.redhat.com/errata/RHSA-2026:6166
https://access.redhat.com/errata/RHSA-2026:6170
https://access.redhat.com/security/cve/CVE-2026-33211
https://bugzilla.redhat.com/show_bug.cgi?id=2450554
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33211.json
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