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CVE-2026-24117

Rekor affected by Server-Side Request Forgery (SSRF) via provided public key URL

Published: Jan 22, 2026Updated: Feb 2, 2026 Sources: CVE List NVD GHSACWE-918
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.3%
Top 75.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-918

Affected Products

rekorsigstore
On-prem
Security Products / pki-crypto
rekorlinuxfoundation
Mixed
AI / ML / ml-framework
github.com/sigstore/rekorGoOSS Libraries
sigstoreoss-projectSecurity Productsaka cosign, gitsign, rekor
linuxfoundationoss-projectUSAI / MLaka yocto, pytorch, everest
gopackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://github.com/sigstore/rekor/security/advisories/GHSA-4c4x-jm2x-pf9j
github.com
https://github.com/sigstore/rekor/commit/60ef2bceba192c5bf9327d003bceea8bf1f8275f
github.com
https://github.com/sigstore/rekor/releases/tag/v1.5.0
github.com
and 2 more references View all →

Timeline

Published
Jan 22, 2026
Last Updated
Feb 2, 2026

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