How severe is CVE-2026-24117?

CVE-2026-24117 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-24117 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24117?

CVE-2026-24117 affects Linuxfoundation Rekor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24117?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-24117 have an EU (EUVD) identifier?

Yes. CVE-2026-24117 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3808.

When was CVE-2026-24117 published?

CVE-2026-24117 was published on 2026-01-22 and last updated on 2026-06-17.

CVE-2026-24117

CVE-2026-24117 is a medium-severity vulnerability in Linuxfoundation Rekor with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3808
Weakness: CWE-918
Affected product: Linuxfoundation Rekor
Published: 2026-01-22
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-24117?: 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.
How severe is CVE-2026-24117?: CVE-2026-24117 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-24117 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24117?: CVE-2026-24117 affects Linuxfoundation Rekor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24117?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-24117 have an EU (EUVD) identifier?: Yes. CVE-2026-24117 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3808.
When was CVE-2026-24117 published?: CVE-2026-24117 was published on 2026-01-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:linuxfoundation:rekor:*:*:*:*:*:*:*:*

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