- Description
- 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.
- Source
- f5sirt@f5.com
- NVD status
- Analyzed
- Products
- nginx_gateway_fabric, nginx_ingress_controller, nginx_instance_manager, nginx_open_source, nginx_plus, waf
CVSS 4.0
- Type
- Secondary
- Base score
- 8.8
- Impact score
- -
- Exploitability score
- -
- Vector string
- 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity
- HIGH
CVSS 3.1
- Type
- Primary
- Base score
- 8.2
- Impact score
- 4.2
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- Severity
- HIGH
- f5sirt@f5.com
- CWE-908
- Hype score
- Not currently trending
🚨 @nginxorg users, this is one to prioritize. A critical heap buffer overflow (CVE-2026-42533, CVSS 9.2) has been disclosed in both NGINX Open Source and NGINX Plus. The advisory also patches: • Memory disclosure (CVE-2026-60005) • Use-after-free (CVE-2026-56434) Most
@jxngrx
21 Jul 2026
49 Impressions
0 Retweets
2 Likes
0 Bookmarks
2 Replies
0 Quotes
nginx releases security updates (1.30.4 & 1.31.3): Fixes include: • CVE-2026-42533 – Buffer overflow • CVE-2026-60005 – Memory disclosure • CVE-2026-56434 – Use-after-free Update as soon as possible. #nginx #Vulnerability
@ThreatByte
17 Jul 2026
4 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🚨 CVE-2026-42533, CVE-2026-60005 & CVE-2026-56434: F5 has disclosed three high-severity vulnerabilities affecting NGINX Plus and NGINX Open Source, potentially leading to memory corruption, worker crashes, or remote code execution. #CyberSecurity #CVE #NGINX #F5 #ThreatWi
@ThreatWire_
16 Jul 2026
52 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🔴 NGINX kullanıcılarının dikkatine! F5, NGINX ve NGINX Plus'ı etkileyen 3 yüksek önem dereceli güvenlik açığını duyurdu. • CVE-2026-42533 – Heap Buffer Overflow • CVE-2026-60005 – Uninitialized Memory Disclosure • CVE-2026-56434 – Use-After-Free Etk
@ridvanyagli
16 Jul 2026
197 Impressions
1 Retweet
2 Likes
2 Bookmarks
0 Replies
0 Quotes
NGINX release-1.30.4 patches CVE-2026-42533 Critical security vulnerabilities (CVE-2026-42533, CVE-2026-60005, CVE-2026-56434) fixed. Upgrade carefully. → https://t.co/aKovKRAYKK
@ReleasePort
16 Jul 2026
11 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
F5 patched the NGINX code execution flaw CVE-2026-42533, along with CVE-2026-60005 and CVE-2026-56434. Update NGINX Plus and Open Source builds now. #NGINX #CVE202642533 #CodeExecution #F5 #Vulnerability https://t.co/cds4Vr6BxO
@Daily_CyberSec
16 Jul 2026
571 Impressions
2 Retweets
9 Likes
3 Bookmarks
0 Replies
0 Quotes
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