CVE-2026-65624
CVE-2026-65624: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh7.5
High [CVE-2026-65624] Denial of Service via HTTP/1.1 duplicate header names
CVE-2026-65624Source published Source updated
Allocation of Resources Without Limits or Throttling vulnerability in ninenines cowboy allows an unauthenticated remote attacker to exhaust connection process memory over HTTP/1.1. The HTTP/1.1 handler in cowboy_http enforces the max_headers limit by counting the number of distinct header names in a map (maps:size(Headers)). When a request contains multiple header lines with the same name, the values are concatenated into a single ever-growing binary stored under that one map key (", " for regular headers, "; " for cookies), so the map size stays at one and the max_headers cap (default 100) is never reached. Because no accumulator bounds the total number of header lines or the total byte size of the header block (only per-line max_header_name_length and max_header_value_length apply), an…
- Affected products in this advisory
- Red Hat Hardened Images
- Source-reported affected versions
- < 2.0.0-pre
- < 2.18.0
- 2.0.0
- Source-reported fixed versions
- rabbitmq-server4-3-main-4.3.4-0.2.hum1
- rabbitmq-server4-2-main-4.2.9-0.2.hum1
- rabbitmq-server4-3-main-4.3.5-0.1.hum1
- RHSA-2026:47231
2 more entries in the full advisory.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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