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TI-2026-41129 Aliases CVE-2026-57160

PJSIP: SIP message header buffer overflow

Priority LOW 37CWE-193Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

PJSIP is a free and open source multimedia communication library written in C. Prior to commit d6a0e7f, a buffer overflow can occur in pjsip_generic_array_hdr_print() in pjsip/src/pjsip/sip_msg.c, the function that serializes generic array headers (such as Allow, Require, Supported, and Unsupported). Under certain output-buffer boundary conditions the function can write one byte past the end of the buffer. This is reachable mainly in applications that parse and re-serialize incoming SIP requests — for example a proxy, SBC, or B2BUA — where a remote peer can influence the serialized message. The out-of-bounds write is a single fixed byte; code execution and information disclosure are not demonstrated, and in typical pool-based allocations the byte falls within allocation slack. This issue has been patched via commit d6a0e7f.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00412 35th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pjsippjproject< d6a0e7f76611c3a6f530ee051e3e7a622bb1748c—No fix listedCNA
  • pjproject Vendorpjsip Affected < d6a0e7f76611c3a6f530ee051e3e7a622bb1748c Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:*up to 2.17Vulnerableteluu
  • cpe:2.3:a:teluu:pjsip:*:*:*:*:*:*:*:* Versions up to 2.17 Vulnerable ·teluu

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-57160
  2. 2026-10-31 CVSS score changed · Red Hat

References

Patch 2

  • TI-2022-13076 Potential stack buffer overflow when parsing message as a STUN client CVSS 3.1CRITICAL 9.8
  • TI-2022-08599 Potential out-of-bound read/write in PJSIP CVSS 3.1CRITICAL 9.8
  • TI-2023-20051 PJSIP has use-after-free vulnerability in SRTP media transport CVSS 3.1CRITICAL 9.8
  • TI-2022-06096 Out-of-bounds read in multipart parsing in PJSIP CVSS 3.1CRITICAL 9.1
  • TI-2022-07661 Use after free in PJSIP CVSS 3.1CRITICAL 9.8
  • TI-2022-06095 Potential out-of-bound read during RTP/RTCP parsing in PJSIP CVSS 3.1CRITICAL 9.1
See all 48 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences