High 7.5Published Sep 22, 2026

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

Updated under an hour ago (2026-10-19 11:40 UTC)

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It affects emiago sipgo. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for emiago sipgo

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-789
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Sep 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

emiago sipgo emiago:sipgo (from the name)	before 1.4.1	CNA record

References

https://github.com/emiago/sipgo/security/advisories/GHSA-pg59-5vwg-4jxqx-refsource-confirm
https://github.com/emiago/sipgo/commit/a7be60a07f48c06b3cdd5a7d35eb820b3df5736cx-refsource-misc
https://github.com/emiago/sipgo/releases/tag/v1.4.1x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.