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CVE-2026-58268— SIPGO: DoS via unvalidated Content-Length in the stream parser

Quick assessment

Affected
emiago sipgo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SIPGO is a library for writing SIP services in the GO language. Prior to 1.4.1, ParserStream.parseSingle in sip/parser_stream.go allocates a SIP body buffer from the client-controlled Content-Length header before ParseMaxMessageLength is enforced. An unauthent

CVSS 7.5 · High
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I. Basic Information for CVE-2026-58268

Vulnerability Information

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Vulnerability Title
SIPGO: DoS via unvalidated Content-Length in the stream parser
Source: CVE Program / CVE List V5
Vulnerability Description
SIPGO is a library for writing SIP services in the GO language. Prior to 1.4.1, ParserStream.parseSingle in sip/parser_stream.go allocates a SIP body buffer from the client-controlled Content-Length header before ParseMaxMessageLength is enforced. An unauthenticated peer can send a stream-transport message over TCP, TLS, WS, or WSS with an oversized declared length, causing excessive memory allocation and denial of service before the body is read. This issue is fixed in version 1.4.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的内存分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
emiago sipgo < 1.4.1 -

II. Public POCs for CVE-2026-58268

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III. Intelligence Information for CVE-2026-58268

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Other References for CVE-2026-58268 (3)

IV. Related Vulnerabilities

Same product: sipgo
Same vendor: emiago
Same weakness: CWE-789

V. Comments for CVE-2026-58268

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