# CVE-2026-48135: HTTP service can incorrectly process malformed HTTP requests

> A memory corruption vulnerability in Check Point Quantum Security Gateway allows attackers to cause denial of service or execute code via malformed HTTP requests.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 May 2026
- **Updated:** 27 May 2026
- **Also known as:** GHSA-xf23-668r-fgjv

## What is CVE-2026-48135?

CVE-2026-48135 is a medium-severity memory corruption vulnerability in checkpoint Quantum Security Gateway, published on 26 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A Check Point HTTP-based service can incorrectly handle malformed HTTP requests.
The issue is related to HTTP request parsing and validation.

Weakness: CWE-122 (Heap-based Buffer Overflow)

## Which versions are affected by CVE-2026-48135?


## How do I fix CVE-2026-48135?

No fix has been published for CVE-2026-48135 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-48135 being exploited?

There is no known exploitation of CVE-2026-48135 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48135 and fix it if it is affected.

What it is: CVE-2026-48135 is a medium-severity memory corruption vulnerability in checkpoint Quantum Security Gateway, published on 26 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-48135 in the wild and no public exploit code.

Affected product: checkpoint Quantum Security Gateway. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-48135/ (Markdown: https://insights.sbomify.com/CVE-2026-48135/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48135
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48135
- OSV: https://osv.dev/vulnerability/CVE-2026-48135

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-48135/
Summaries are generated and may contain mistakes; the official description above is the record.