CVE-2026-63448
- Source
- https://cve.org/CVERecord?id=CVE-2026-63448
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-63448.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-63448
- Aliases
-
- GHSA-hvvj-c8xx-9g35
- Downstream
- Published
- 2026-09-18T20:20:01Z
- Modified
- 2026-09-20T08:19:43Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Suricata smb: some SMB flows can cause resource exhaustion
- Details
-
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, the SMB parser can retain force-completed transactions on flows where Suricata sees payload in only one direction, including async-oneside flows, because cleanup waits for inspection in the unseen direction. The transaction creation paths in rust/src/smb can exceed the intended SMB_MAX_TX bound, and cleanup repeatedly scans the growing list. Sustained one-directional SMB traffic can therefore cause unbounded per-flow state and CPU and memory exhaustion. This issue is fixed in versions 8.0.6 and 7.0.17.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-400", "CWE-401", "CWE-407" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63448.json" }- References
-
- https://github.com/OISF/suricata/releases/tag/suricata-7.0.17
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
- https://redmine.openinfosecfoundation.org/issues/8629
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63448.json
- https://github.com/OISF/suricata/security/advisories/GHSA-hvvj-c8xx-9g35
- https://nvd.nist.gov/vuln/detail/CVE-2026-63448
- https://github.com/OISF/suricata/commit/755d6c3061de4d7ba97f0ed31cdc17ab8cab4476
- https://github.com/OISF/suricata/commit/7ec9d72d28b9370712cf77a5b9d40d6b5db27cb4
- https://github.com/OISF/suricata/commit/88adab8bd3d62912941647ab65032d5ec75c893a
- https://github.com/OISF/suricata/commit/9a54a043516e644bb7b9d34117a91977f950a281
- https://github.com/OISF/suricata/commit/bc39274a638d1cca2391cfa4891c8b6c255ff9ce
- https://github.com/OISF/suricata/commit/c8f68b0e4f9e721dca1c9ed6e08597c6964c7ac3
Affected packages
Git / github.com/oisf/suricata
Affected ranges
- Type
- GIT
- Repo
- https://github.com/oisf/suricata
- Events
-
IntroducedIntroduced0 Unknown introduced commit / All previous commits are affectedFixedFixedFixedFixedFixedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "8.0.0" }, { "fixed": "8.0.6" }, { "introduced": "0" }, { "fixed": "7.0.17" } ], "source": [ "AFFECTED_FIELD", "REFERENCES" ] }
Affected versions
suricata-0.*
suricata-0.8.2
suricata-1.*
suricata-1.0.0
suricata-1.0.1
suricata-1.0.2
suricata-1.1
suricata-1.1beta1
suricata-1.1beta2
suricata-1.1beta3
suricata-1.1rc1
suricata-1.2
suricata-1.2.1
suricata-1.2beta1
suricata-1.2rc1
suricata-1.3
suricata-1.3.1
suricata-1.3beta1
suricata-1.3beta2
suricata-1.3rc1
suricata-1.4
suricata-1.4beta1
suricata-1.4beta2
suricata-1.4beta3
suricata-1.4rc1
suricata-2.*
suricata-2.0
suricata-2.0.1
suricata-2.0.1rc1
suricata-2.0.2
suricata-2.0beta1
suricata-2.0beta2
suricata-2.0rc1
suricata-2.0rc2
suricata-2.0rc3
suricata-2.1beta1
suricata-2.1beta2
suricata-2.1beta3
suricata-2.1beta4
suricata-3.*
suricata-3.0
suricata-3.0.1
suricata-3.0.1RC1
suricata-3.0RC1
suricata-3.0RC2
suricata-3.0RC3
suricata-3.1
suricata-3.1.1
suricata-3.1.2
suricata-3.1RC1
suricata-3.2
suricata-3.2.1
suricata-3.2RC1
suricata-3.2beta1
suricata-4.*
suricata-4.0.0
suricata-4.0.0-beta1
suricata-4.0.0-rc1
suricata-4.0.0-rc2
suricata-4.0.1
suricata-4.1.0
suricata-4.1.0-beta1
suricata-4.1.0-rc1
suricata-4.1.0-rc2
suricata-4.1.1
suricata-4.1.2
suricata-5.*
suricata-5.0.0
suricata-5.0.0-beta1
suricata-5.0.0-rc1
suricata-5.0.1
suricata-6.*
suricata-6.0.0
suricata-6.0.0-beta1
suricata-6.0.0-rc1
suricata-6.0.1
suricata-7.*
suricata-7.0.0
suricata-7.0.0-beta1
suricata-7.0.0-rc1
suricata-7.0.0-rc2
suricata-7.0.1
suricata-7.0.10
suricata-7.0.11
suricata-7.0.12
suricata-7.0.13
suricata-7.0.14
suricata-7.0.15
suricata-7.0.16
suricata-7.0.2
suricata-7.0.3
suricata-7.0.4
suricata-7.0.5
suricata-7.0.6
suricata-7.0.7
suricata-7.0.8
suricata-7.0.9
suricata-8.*
suricata-8.0.0
suricata-8.0.1
suricata-8.0.2
suricata-8.0.3
suricata-8.0.4
suricata-8.0.5
Database specific
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-63448.json"
vanir_signatures
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"id": "CVE-2026-63448-3d3efde8",
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vanir_signatures_modified
"2026-09-20T08:19:43Z"