CVE-2026-33211Public exploitNetwork attack vector

Authenticated resolver-pod file read via path traversal

Published Mar 23, 2026 · Updated Mar 23, 2026

Path traversal in the git resolver in Tekton Pipelines allows remote authenticated users to read files from the resolver pod. getFileContent joins the user-controlled pathInRepo value to the clone directory and passes the result to os.ReadFile without rejecting traversal or resolving symlink escapes. Namespace permission to create a TaskRun, PipelineRun, or ResolutionRequest is sufficient; reading the resolver ServiceAccount token can expose cluster-wide Secrets under the default RBAC policy.

CVSS severity9.6
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the git resolver in Tekton Pipelines allows remote authenticated users to read files from the resolver pod. getFileContent joins the user-controlled pathInRepo value to the clone directory and passes the result to os.ReadFile without rejecting traversal or resolving symlink escapes. Namespace permission to create a TaskRun, PipelineRun, or ResolutionRequest is sufficient; reading the resolver ServiceAccount token can expose cluster-wide Secrets under the default RBAC policy.

The record

CVE
CVE-2026-33211
Published
Mar 23, 2026
Updated
Mar 23, 2026
Vendor
Tekton
Product
Tekton Pipelines
Classifications
CWE-22, T1552.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 1.0.0, < 1.0.1
  2. Affected versionversion=>= 1.10.0, < 1.10.2
  3. Affected versionversion=>= 1.1.0, < 1.3.3
  4. Affected versionversion=>= 1.4.0, < 1.6.1
  5. Affected versionversion=>= 1.7.0, < 1.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tekton · Tekton Pipelinesversion=>= 1.0.0, < 1.0.1; version=>= 1.10.0, < 1.10.2; version=>= 1.1.0, < 1.3.3; version=>= 1.4.0, < 1.6.1; version=>= 1.7.0, < 1.9.2

Published CVSS scores

9.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
9.6redhat-SADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1552.007Unsecured Credentials: Container API

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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