SIPGO: DoS via unvalidated WebSocket frame length

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-77322
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-22 20:17:08 UTC
Updated2026-09-23 18:12:04 UTC
DescriptionSIPGO is a library for writing SIP services in the GO language. Prior to 1.4.3, WSConnection.Read in sip/transport_ws.go creates a wsutil.Reader without setting MaxFrameSize, allowing NextFrame to accept a client-controlled header.Length before ParseMaxMessageLength is applied. An unauthenticated WS or WSS peer can send a frame header declaring an extremely large payload, causing an oversized allocation or a makeslice length panic before the payload is read and crashing or exhausting memory in the server process. This issue is fixed in version 1.4.3.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.005240000 probability, percentile 0.419550000 (date 2026-09-24)

Problem Types: CWE-789 | CWE-789 CWE-789: Memory Allocation with Excessive Size Value

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Emiago Sipgo affected < 1.4.3 Not specified

References

ReferenceSourceLinkTags
github.com/emiago/sipgo/security/advisories/GHSA-8h6x-h86x-75wh 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/emiago/sipgo/commit/769e4bc958376e2363566c8f7042202b410becdc [email protected] github.com
github.com/emiago/sipgo/releases/tag/v1.4.3 [email protected] github.com
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