CVE-2026-24117 Details
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.
A server-side request forgery (SSRF) vulnerability has been identified in Sigstore Rekor versions through 1.4.3. The issue arises in the search index retrieval API, which allows users to provide a URL to fetch a public key. This functionality can be exploited to send GET requests to internal services, potentially probing internal networks, although the response is not returned to the caller, preventing data exfiltration.
Users can upgrade to Sigstore Rekor version 1.5.0, which patches the vulnerability by removing the ability to fetch public keys via URL in the search index. Alternatively, the search endpoint can be disabled with the command line option '--enable_retrieve_api=false'.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jan 23, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linuxfoundation rekor | < 1.5.0 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 2, 2026 | Initial Analysis | [email protected] |
| Jan 22, 2026 | New CVE Received | [email protected] |