# CVE-2026-48135: Check Point HTTP service heap overflow in request parsing

Source: https://junglewise.ai/threats/cve-2026-48135-check-point-http-service-heap-overflow-in-request-parsing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-26. Updated: 2026-05-26  
License: CC BY 4.0 with a link back

CVE-2026-48135 · Severity: medium · CVSS 5.3 · Published 2026-05-26

A vulnerability in a Check Point HTTP-based service allows the system to incorrectly process specially crafted web requests. This could lead to service instability or a partial denial of service, potentially disrupting network traffic or administrative access. No sensitive customer data is reported to be at risk from this specific issue.

Vendors: [Check Point](https://junglewise.ai/threats/vendors/check-point).

## Quick answers

**Is CVE-2026-48135 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-48135 being exploited in the wild.

**How severe is CVE-2026-48135?** Medium severity, with a CVSS score of 5.3, published 26 May 2026.

**Which products and versions are affected?** Check Point HTTP-based service.

**Is there a fix for CVE-2026-48135?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-48135 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-48135?** Check whether you run Check Point HTTP-based service. 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

This vulnerability is classified as a heap-based buffer overflow (CWE-122) within a Check Point HTTP-based service. The root cause is a failure to properly parse and validate malformed HTTP requests. An unauthenticated remote attacker can exploit this by sending specially crafted HTTP packets over the network. Successful exploitation primarily impacts availability, potentially causing the service to crash or become unresponsive. Check Point has released advisory sk184991 to address the issue.

## Affected products

- Check Point HTTP-based service

## Timeline

- 2026-05-26: disclosed
- 2026-05-26: advisory

## References

- [https://support.checkpoint.com/results/sk/sk184991](https://support.checkpoint.com/results/sk/sk184991)