How severe is CVE-2026-15154?

CVE-2026-15154 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-15154 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-15154?

CVE-2026-15154 affects Redhat Openshift Ai. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-15154?

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

When was CVE-2026-15154 published?

CVE-2026-15154 was published on 2026-07-08 and last updated on 2026-08-11.

CVE-2026-15154

CVE-2026-15154 is a medium-severity vulnerability in Redhat Openshift Ai 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-1333.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Redhat Openshift Ai
Published: 2026-07-08
Last modified: 2026-08-11

Description

A flaw was found in `guardrails-detectors`, a component of Red Hat OpenShift AI. This vulnerability, known as Regular Expression Denial of Service (ReDoS), allows a remote attacker to provide specially crafted regular expressions to the public detection API. This can cause catastrophic backtracking, leading to a worker process consuming 100% CPU indefinitely and resulting in a denial of service for the entire guardrails-mediated LLM pipeline.

Frequently asked questions

What is CVE-2026-15154?: A flaw was found in `guardrails-detectors`, a component of Red Hat OpenShift AI. This vulnerability, known as Regular Expression Denial of Service (ReDoS), allows a remote attacker to provide specially crafted regular expressions to the public detection API. This can cause catastrophic backtracking, leading to a worker process consuming 100% CPU indefinitely and resulting in a denial of service for the entire guardrails-mediated LLM pipeline.
How severe is CVE-2026-15154?: CVE-2026-15154 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-15154 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-15154?: CVE-2026-15154 affects Redhat Openshift Ai. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-15154?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-15154 published?: CVE-2026-15154 was published on 2026-07-08 and last updated on 2026-08-11.

References

Affected products (1)

cpe:2.3:a:redhat:openshift_ai:-:*:*:*:*:*:*:*

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