Bug 2531669 (CVE-2026-45764)
| Summary: | CVE-2026-45764 suricata: Suricata http2: protocol-change type confusion can lead to denial of service | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | dfreiber, drow, jburrell, vkumar |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A type confusion flaw was found in Suricata's HTTP/2 protocol parsing engine. When processing network traffic, Suricata fails to properly validate protocol state transitions during HTTP/2 frame handling. A remote, unauthenticated attacker could exploit this vulnerability by transmitting specially crafted HTTP/2 traffic through a network monitored by Suricata. Successful exploitation triggers an internal memory type confusion, causing the Suricata process to crash and resulting in a Denial of Service (DoS) for network intrusion detection and monitoring capabilities.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2533859, 2533860 | ||
| Bug Blocks: | |||
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Description
OSIDB Bzimport
2026-09-10 21:22:37 UTC
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