How severe is CVE-2026-2377?

CVE-2026-2377 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-2377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2377?

CVE-2026-2377 primarily affects Redhat Mirror Registry For Red Hat Openshift. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-2377?

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

Does CVE-2026-2377 have an EU (EUVD) identifier?

Yes. CVE-2026-2377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20507.

When was CVE-2026-2377 published?

CVE-2026-2377 was published on 2026-04-08 and last updated on 2026-07-01.

CVE-2026-2377

CVE-2026-2377 is a medium-severity vulnerability in Redhat Mirror Registry For Red Hat Openshift with a CVSS 3.x base score of 6.5. 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 6.5)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20507
Weakness: CWE-918
Affected product: Redhat Mirror Registry For Red Hat Openshift
Published: 2026-04-08
Last modified: 2026-07-01

Description

A flaw was found in Red Hat Quay and mirror registry for Red Hat OpenShift. The log export feature in these products allows an authenticated user to specify an arbitrary callback URL. A backend process then makes server-side HTTP requests to this provided URL. This vulnerability, known as Server-Side Request Forgery (SSRF), could allow an attacker to send requests from the application's internal network, potentially leading to the disclosure of sensitive information.

Frequently asked questions

What is CVE-2026-2377?: A flaw was found in Red Hat Quay and mirror registry for Red Hat OpenShift. The log export feature in these products allows an authenticated user to specify an arbitrary callback URL. A backend process then makes server-side HTTP requests to this provided URL. This vulnerability, known as Server-Side Request Forgery (SSRF), could allow an attacker to send requests from the application's internal network, potentially leading to the disclosure of sensitive information.
How severe is CVE-2026-2377?: CVE-2026-2377 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-2377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2377?: CVE-2026-2377 primarily affects Redhat Mirror Registry For Red Hat Openshift. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-2377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2377 have an EU (EUVD) identifier?: Yes. CVE-2026-2377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20507.
When was CVE-2026-2377 published?: CVE-2026-2377 was published on 2026-04-08 and last updated on 2026-07-01.

References

Affected products (3)

cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:mirror_registry_for_red_hat_openshift:2.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:*

More vulnerabilities in Redhat Mirror Registry For Red Hat Openshift

CVE-2026-32589 — High (CVSS 7.4): A flaw was found in Red Hat Quay's container image upload process. An authenticated user with push access to any…
CVE-2026-32590 — High (CVSS 7.1): A flaw was found in Red Hat Quay's handling of resumable container image layer uploads. The upload process stores…
CVE-2025-14243 — Medium (CVSS 5.3): A flaw was found in the OpenShift Mirror Registry. This vulnerability allows an unauthenticated, remote attacker to…
CVE-2026-32591 — Medium (CVSS 5.2): A flaw was found in Red Hat Quay's Proxy Cache configuration feature. When an organization administrator configures an…

All CVEs affecting Redhat Mirror Registry For Red Hat Openshift →

Other CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities

CVE-2026-47938 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by a Server-Side Request Forgery (SSRF)…
CVE-2026-35431 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Entra ID Entitlement Management allows an unauthorized attacker to…
CVE-2026-32186 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to elevate privileges over a…
CVE-2026-33107 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure Databricks allows an unauthorized attacker to elevate privileges over a…
CVE-2026-32871 — Critical (CVSS 10.0): FastMCP is a Pythonic way to build MCP servers and clients. Prior to version 3.2.0, the OpenAPIProvider in FastMCP…
CVE-2026-32169 — Critical (CVSS 10.0): Server-side request forgery (ssrf) in Azure Cloud Shell allows an unauthorized attacker to elevate privileges over a…

Browse all CWE-918 (Server-Side Request Forgery (SSRF)) vulnerabilities →