How severe is CVE-2026-1518?

CVE-2026-1518 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-1518 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-1518?

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

Does CVE-2026-1518 have an EU (EUVD) identifier?

Yes. CVE-2026-1518 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5130.

When was CVE-2026-1518 published?

CVE-2026-1518 was published on 2026-02-02 and last updated on 2026-06-17.

CVE-2026-1518

CVE-2026-1518 is a low-severity vulnerability with a CVSS 3.x base score of 2.7. 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: Low (CVSS 3.x base score 2.7)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5130
Weakness: CWE-918
Published: 2026-02-02
Last modified: 2026-06-17

Description

A flaw was found in Keycloak’s CIBA feature where insufficient validation of client-configured backchannel notification endpoints could allow blind server-side requests to internal services.

Frequently asked questions

What is CVE-2026-1518?: A flaw was found in Keycloak’s CIBA feature where insufficient validation of client-configured backchannel notification endpoints could allow blind server-side requests to internal services.
How severe is CVE-2026-1518?: CVE-2026-1518 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-1518 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-1518?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1518 have an EU (EUVD) identifier?: Yes. CVE-2026-1518 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5130.
When was CVE-2026-1518 published?: CVE-2026-1518 was published on 2026-02-02 and last updated on 2026-06-17.

References

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