CVE-2026-41415 PJSIP: SIP Multipart CID URI Length Underflow
An out-of-bounds read in PJSIP allows attackers to cause denial of service or disclose memory contents via malformed SIP messages.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41415?
CVE-2026-41415 is a medium-severity memory corruption vulnerability in pjsip pjproject, published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is an out-of-bounds read when parsing a malformed Content-ID URI in SIP multipart message body. Insufficient length validation can cause reads beyond the intended buffer bounds. This vulnerability is fixed in 2.17.
Weakness: CWE-125
Which versions are affected by CVE-2026-41415?
It affects 1 product.
Products include Teluu Pjsip.
How do I fix CVE-2026-41415?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-41415 being exploited?
There is no known exploitation of CVE-2026-41415 in the wild and no public exploit code.
Other vulnerabilities in pjsip pjproject
- CVE-2023-38703 PJSIP has use-after-free vulnerability in SRTP media transport
- CVE-2022-39269 Media transport downgrade from the secure version (SRTP) to non-secure (RTP) in pjsip
- CVE-2026-57161 PJSIP: Stack overflow handling Service-Route headers in a registration response
- CVE-2026-57162 PJSIP: Stack overflow parsing SDP a=crypto attributes
- CVE-2026-57163 PJSIP: Stack overflow parsing a TLS peer certificate's SubjectAltName in GnuTLS backend
Sources
Also known as DEBIAN-CVE-2026-41415, GHSA-935m-fmf5-j4pm, UBUNTU-CVE-2026-41415.