# CVE-2026-103100: Pexip Infinity improper input validation in signaling

Source: https://junglewise.ai/threats/cve-2026-103100-pexip-infinity-before-40-1-is-affected-by-improper-input  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-30. Updated: 2026-09-30  
License: CC BY 4.0 with a link back

CVE-2026-103100 · Severity: high · CVSS 7.5 · Published 2026-09-30

Pexip Infinity is a video conferencing platform used for remote meetings and communications. An improper input validation vulnerability in the signaling implementation allows a remote attacker to crash the service, preventing legitimate users from connecting to or using conferences. This denial of service can disrupt business communications and meetings.

Technologies: [Pexip Infinity](https://junglewise.ai/threats/technologies/infinity). Vendors: [Pexip](https://junglewise.ai/threats/vendors/pexip).

## Quick answers

**Is CVE-2026-103100 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-103100 being exploited in the wild.

**How severe is CVE-2026-103100?** High severity, with a CVSS score of 7.5, published 30 September 2026.

**Which products and versions are affected?** Pexip Infinity before 40.1.

**Is there a fix for CVE-2026-103100?** A patch was published on 2026-09: Fixed in Infinity 40.1 and later Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-103100 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-103100?** Check whether you run Pexip Infinity at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Improper input validation in the signaling implementation allows a remote attacker without authentication to trigger a software abort, resulting in denial of service. The attack is network-accessible with low complexity and requires no user interaction. The vulnerability affects Pexip Infinity versions before 40.1, with patched versions available in 40.1 and later.

## Affected products

- Pexip Infinity before 40.1

## Timeline

- 2026-09-30: disclosed
- 2026-09: patched: Fixed in Infinity 40.1 and later

## References

- [https://docs.pexip.com/admin/security_bulletins.htm](https://docs.pexip.com/admin/security_bulletins.htm)

## Related threats

- [Pexip Infinity input validation in media implementation denial of service](https://junglewise.ai/threats/cve-2026-103109-pexip-infinity-before-38-2-plus-39-0-39-1-and-40-0-is-affected)
- [Pexip Infinity improper input validation in media implementation](https://junglewise.ai/threats/cve-2026-103108-pexip-infinity-before-38-2-plus-39-0-39-1-and-40-0-is-affected)
- [Pexip Infinity privilege escalation in internal service](https://junglewise.ai/threats/cve-2026-103106-pexip-infinity-before-38-2-plus-39-0-39-1-and-40-0-is-affected)
- [Pexip Infinity improper access control on internal API](https://junglewise.ai/threats/cve-2026-103105-pexip-infinity-before-38-2-plus-39-0-39-1-and-40-0-is-affected)
- [Pexip Infinity improper input validation in media implementation](https://junglewise.ai/threats/cve-2026-103104-pexip-infinity-before-38-2-plus-39-0-39-1-and-40-0-is-affected)