EUVD-2026-75508Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-reachable decompression bomb requiring no authentication or user interaction; impact is solely availability via memory exhaustion, no C or I consequence.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
6DescriptionCVE.org
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's HTTP/2 decompression path could grow the decompressed response-body buffer without an effective upper bound. A crafted HTTP/2 DATA payload using a high compression ratio, such as gzip, deflate, or brotli compressed data, could cause Suricata to allocate excessive memory while decompressing the payload. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP2.
AnalysisAI
Memory exhaustion via decompression bomb in Suricata prior to 7.0.16 and 8.0.5 allows a remote unauthenticated attacker to crash or degrade the IDS/IPS engine by transmitting crafted HTTP/2 DATA frames with extreme compression ratios. The HTTP/2 response-body decompression path (supporting gzip, deflate, and brotli) lacked an effective upper bound on allocated buffer size, enabling a data-amplification (zip-bomb) attack against monitored network segments. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Suricata must be actively inspecting HTTP/2 traffic, which requires that HTTP/2 application-layer parsing and decompression be enabled - this is the default configuration in current Suricata versions. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H scores 7.5, which accurately characterizes the risk profile: fully remote, unauthenticated, zero-click, and trivially repeatable with no special conditions beyond routing traffic through a Suricata sensor. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patches are available: upgrade Suricata to version 7.0.16 (7.x branch) or 8.0.5 (8.x branch), as confirmed by the OISF security advisory GHSA-45p7-j5wm-8wrx and the forum release post at https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Suricata deployments running versions prior to 7.0.16 or 8.0.5 and assess their security criticality. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
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Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suric
An issue was discovered in Suricata before 6.0.4. Rated high severity (CVSS 7.5), this vulnerability is remotely exploit
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
An issue was discovered in Suricata 4.1.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, n
Open Information Security Foundation Suricata prior to version 4.1.3 is affected by: Denial of Service - TCP/HTTP detect
Suricata before 4.0.5 stops TCP stream inspection upon a TCP RST from a server. Rated high severity (CVSS 7.5), this vul
The MemcmpLowercase function in Suricata before 2.0.6 improperly excludes the first byte from comparisons, which might a
In Suricata before 6.0.13, an adversary who controls an external source of Lua rules may be able to execute Lua code. Ra
Same technique Denial Of Service
View allVendor StatusVendor
SUSE
Severity: Important| Product | Status |
|---|---|
| openSUSE Tumbleweed | Fixed |
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