CVE-2026-77322High· 7.5▾ MidnightPoC available

SIPGO is a library for writing SIP services in the GO language

▾ Midnight zone — Critical, or high with PoC / in-the-wild

Depth score53/ 100 · Moderate

impact 41.3 · likelihood 0.1 · exploitation 12

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

A public proof-of-concept already exists for this vulnerability — see Exploit availability below.

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Published

Sep 22, 2026

Updated

Sep 23, 2026

CVSS

7.5

Vendor

emiago

Product

sipgo

CWE

CWE-789

Depth score

53 · Moderate

EPSS

0.61% · p48

Platforms

—

Source

NVD

Vector

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

CISA SSVC

decided 2026-09-23

Exploitation: poc
Automatable: yes
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

4 events · 2 days

Sep 22, 2026Published
Disclosed via NVD
Sep 23, 2026Record revised
Last analysed / modified upstream
Sep 23, 2026EPSS first tracked
0.6%
Sep 23, 2026Public exploit observed
Exploit / PoC code exists

emiago CWE-789 #nvd #cve.org #exploit-available #ghsa #go

Affected

sipgo < 1.4.3

Patched in

github.com/emiago/sipgo 1.4.3

Full technical detail▾

Overview

SIPGO 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.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

Package advisory (CVE-2026-77322)

Affected packages:

github.com/emiago/sipgo <= 1.4.2

Patched in:

github.com/emiago/sipgo 1.4.3

Source: https://github.com/advisories/GHSA-8h6x-h86x-75wh

References

Change history

Field changes observed since this record was first indexed.

Sep 23, 2026Public exploit / PoC published

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#exploit-available#ghsa#go

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