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CVE-2025-27516VulnerabilityPublished Updated

Red Hat Security Advisory: OpenShift Container Platform 4.15.49 security and extras update

Affects Red HatSource GCVE Database

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Not known to be exploited.

Data as of 30 Oct 2026, 22:09 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Apr 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

AI-suggested

Red Hat has released updated RPM packages and container images as part of OpenShift Container Platform 4.15.49 to address this vulnerability. Users should upgrade to these updated packages and images as soon as they are available in the appropriate release channels. Upgrades can be performed using the OpenShift CLI (oc) or the web console. Detailed upgrade instructions are available in the official Red Hat OpenShift documentation. No additional mitigation actions are indicated beyond applying the update.

Description

Red Hat OpenShift Container Platform 4.15.49 includes a security update addressing a Jinja2 sandbox breakout vulnerability (CVE-2025-27516) through the attr filter selecting the format method. This vulnerability could allow an attacker to escape the Jinja sandbox, potentially leading to unauthorized code execution or information disclosure. Red Hat has released updated RPM packages and container images to fix this issue. Users of OpenShift Container Platform 4.15 are advised to upgrade to the updated packages and images via the appropriate release channels using the OpenShift CLI or web console.

References

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