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01 Record

CVE-2026-40161

Tekton Pipelines: Git resolver API mode leaks system-configured API token to user-controlled serverURL

HighPUBLISHEDCNA: GitHub_M
CNA base score7.7 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
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02 Description

Tekton Pipelines: Git resolver API mode leaks system-configured API token to user-controlled serverURL

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.26% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 17.5% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-10-26.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-21 16:26Z6 MO AGO
Last updated
2026-05-21 21:20Z5 MO AGO
Reserved
2026-04-09
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 7.7)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Weaknesses
  • CWE-201Insertion of Sensitive Information Into Sent DataBase
  • CWE-918Server-Side Request Forgery (SSRF)Base
Data version
5.2
Document digest
fc0b68bbbfd1e92362200e179fbd95f47910f7082158d79fa0cefb0b01a3be26

05 Affected products

VendorProductVersionsPlatforms
tektoncdpipeline>= 1.0.0, < 1.0.2, >= 1.2.0, < 1.3.4, >= 1.4.0, < 1.6.2, >= 1.7.0, < 1.9.3, >= 1.10.0, < 1.11.1—

06 References