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CVE-2026-45809 OpenSIPS: Denial of Service in watcherinfo XML generation from oversized watcher URI

🗓️ 04 Aug 2026 23:30:03Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

OpenSIPS versions before 3.6.6 and 4.0.0-rc1 crash due to watcher information generation overflow from an oversized watcher address in presence SUBSCRIBE.

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Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-45809
4 Aug 202623:30
attackerkb
cve
CVE
CVE-2026-45809
4 Aug 202623:30
cve
euvd
EUVD
EUVD-2026-53002
4 Aug 202623:30
euvd
nvd
NVD
CVE-2026-45809
5 Aug 202600:17
nvd
redhatcve
RedhatCVE
CVE-2026-45809
5 Aug 202600:10
redhatcve
[
  {
    "vendor": "OpenSIPS",
    "product": "opensips",
    "versions": [
      {
        "version": ">= 3.4.0, < 3.6.6",
        "status": "affected"
      },
      {
        "version": ">= 4.0.0-beta, < 4.0.0-rc1",
        "status": "affected"
      }
    ]
  }
]

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