Rekor is a software supply chain transparency log. In versions 1.4.3 and below, attackers can trigger SSRF to arbitrary internal services because /api/v1/index/retrieve supports retrieving a public key via user-provided URL. Since the SSRF only can trigger GET requests, the request cannot mutate state. The response from the GET request is not returned to the caller so data exfiltration is not possible. A malicious actor could attempt to probe an internal network through Blind SSRF. The issue has been fixed in version 1.5.0. To workaround this issue, disable the search endpoint with --enable_retrieve_api=false.
History

Fri, 23 Jan 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 23 Jan 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Sigstore
Sigstore rekor
Vendors & Products Sigstore
Sigstore rekor

Thu, 22 Jan 2026 23:00:00 +0000

Type Values Removed Values Added
Description Rekor is a software supply chain transparency log. In versions 1.4.3 and below, attackers can trigger SSRF to arbitrary internal services because /api/v1/index/retrieve supports retrieving a public key via user-provided URL. Since the SSRF only can trigger GET requests, the request cannot mutate state. The response from the GET request is not returned to the caller so data exfiltration is not possible. A malicious actor could attempt to probe an internal network through Blind SSRF. The issue has been fixed in version 1.5.0. To workaround this issue, disable the search endpoint with --enable_retrieve_api=false.
Title Rekor affected by Server-Side Request Forgery (SSRF) via provided public key URL
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-01-22T22:05:08.136Z

Updated: 2026-01-23T20:14:54.031Z

Reserved: 2026-01-21T18:38:22.472Z

Link: CVE-2026-24117

cve-icon Vulnrichment

Updated: 2026-01-23T20:14:48.653Z

cve-icon NVD

Status : Received

Published: 2026-01-22T22:16:21.577

Modified: 2026-01-22T22:16:21.577

Link: CVE-2026-24117

cve-icon Redhat

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