CVE-2026-41415
PJSIP: SIP Multipart CID URI Length Underflow
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.
INFO
Published Date :
April 24, 2026, 7:17 p.m.
Last Modified :
April 28, 2026, 6:30 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update PJSIP to version 2.17.
- Apply security patches for PJSIP.
- Validate URI parsing logic in SIP messages.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-41415.
| URL | Resource |
|---|---|
| https://github.com/pjsip/pjproject/commit/4225a93c16661538005017883fbc8f1ea1d5f4b0 | Patch |
| https://github.com/pjsip/pjproject/security/advisories/GHSA-935m-fmf5-j4pm | Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-41415 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-41415
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-41415 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-41415 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 28, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* versions up to (excluding) 2.17 Added Reference Type GitHub, Inc.: https://github.com/pjsip/pjproject/commit/4225a93c16661538005017883fbc8f1ea1d5f4b0 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/pjsip/pjproject/security/advisories/GHSA-935m-fmf5-j4pm Types: Patch, Vendor Advisory -
New CVE Received by [email protected]
Apr. 24, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-125 Added Reference https://github.com/pjsip/pjproject/commit/4225a93c16661538005017883fbc8f1ea1d5f4b0 Added Reference https://github.com/pjsip/pjproject/security/advisories/GHSA-935m-fmf5-j4pm