CVE-2026-24117 | Rekor affected by Server-Side Request Forgery (SSRF) via provided public key URL

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.

Published: 2026-01-22 Last update: 2026-02-02 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-24117 is rated Low Risk (23.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.03%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-24117

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-23 — 0.03% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-24117

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]

Weakness enumeration for CVE-2026-24117

GitHub Security Advisory for CVE-2026-24117

GHSA-4c4x-jm2x-pf9j · Severity: medium · Ecosystem: go — Rekor affected by Server-Side Request Forgery (SSRF) via provided public key URL

OS Trackers for CVE-2026-24117

vendor priority summary link
alpine — CVE-2026-24117: 1 source package rows (rekor); 20 state rows across 2 repos (3.23-community, edge-community); fixed 0, open 20. https://security.alpinelinux.org/vuln/CVE-2026-24117
debian not yet assigned CVE-2026-24117 not yet assigned priority: Debian including 1 source packages (rekor), 3 status rows across 3 suites (forky, sid, trixie): resolved 2, open 1. https://security-tracker.debian.org/tracker/CVE-2026-24117
redhat medium — https://access.redhat.com/security/cve/CVE-2026-24117
suse medium CVE-2026-24117 severity moderate: SUSE including 26 source package names (apptainer, apptainer-leap, …), 179 product×package rows across 25 product lines (SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS, SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS, … (25 product lines)): Known Not Affected 178, Fixed 1. https://www.suse.com/security/cve/CVE-2026-24117/
ubuntu medium CVE-2026-24117 medium priority: Ubuntu including 1 source packages (rekor), 4 status rows across 4 suites (jammy, noble, questing, upstream): DNE 2, needs-triage 2. https://ubuntu.com/security/CVE-2026-24117

Affected software / configurations for CVE-2026-24117

Vendor Product Version Raw CPE
linuxfoundation rekor < 1.5.0 cpe:2.3:a:linuxfoundation:rekor:*:*:*:*:*:*:*:*

References for CVE-2026-24117

cvelogic Threat Intelligence