Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package openshift-service-mesh/istio-operator-bundle (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-OPENSHIFTSERVICEMESHISTIOOPERATORBUNDLE-14416073
- published15 Dec 2025
- disclosed12 Dec 2025
Introduced: 12 Dec 2025
CVE-2025-67725 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openshift-service-mesh/istio-operator-bundle package and not the openshift-service-mesh/istio-operator-bundle package as distributed by RHEL.
Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, a single maliciously crafted HTTP request can block the server's event loop for an extended period, caused by the HTTPHeaders.add method. The function accumulates values using string concatenation when the same header name is repeated, causing a Denial of Service (DoS). Due to Python string immutability, each concatenation copies the entire string, resulting in O(n²) time complexity. The severity can vary from high if max_header_size has been increased from its default, to low if it has its default value of 64KB. This issue is fixed in version 6.5.3.