# CVE-2026-60005 — F5 NGINX Plus

> As of 2026-07-15, CVE-2026-60005 is a HIGH-severity vulnerability in F5 NGINX Plus, CVSS v3.1 8.2, EPSS 0.5% (43.1th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-60005, most recently “F5 Patches Multiple NGINX Vulnerabilities: Heap Overflow, Memory Disclosure, and Use-After-Free (CVE-2026-42533, CVE-2026-60005, CVE-2026-56434)”.

**Last updated:** 2026-07-15

## What is CVE-2026-60005?

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_slice_module module. When the slice directive and unnamed regex captures are configured or when a background cache update happens, unauthenticated attackers can send requests that may cause uninitialized memory access in the NGINX worker process, leading to limited disclosure of memory or a restart. Impact: This vulnerability may allow remote, unauthenticated attackers to have limited control to disclose memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: The ngx_http_slice_module module is not enabled by default; it's enabled with the --with-http_slice_module configuration parameter. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The record classifies CVE-2026-60005 under weakness class [CWE-908](https://intel.threadlinqs.com/cwe/CWE-908). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on availability. 2 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 104 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.2 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H`)
- **CVSS v4.0 base score:** 8.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **EPSS (FIRST):** 0.5% probability of exploitation in the next 30 days, higher than 43.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-15

## Is CVE-2026-60005 being exploited?

It currently carries a trending score of 24 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [F5](https://intel.threadlinqs.com/vendors/f5): NGINX Plus, NGINX Open Source

## How to fix CVE-2026-60005

Vendor advisory: [https://my.f5.com/manage/s/article/K000162100](https://my.f5.com/manage/s/article/K000162100). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-60005

1 tracked threat in the Threadlinqs corpus references CVE-2026-60005, either in the campaign’s CVE list or as an indicator on the campaign record.

- [F5 Patches Multiple NGINX Vulnerabilities: Heap Overflow, Memory Disclosure, and Use-After-Free (CVE-2026-42533, CVE-2026-60005, CVE-2026-56434)](https://intel.threadlinqs.com/threat/TL-2026-1391) — CRITICAL · 2026-07-15

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [my.f5.com — vendor advisory](https://my.f5.com/manage/s/article/K000162100)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-60005
Full detection coverage and IOCs for threats exploiting CVE-2026-60005 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp