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CVE-2026-60005

HIGHCVSS 8.2/10EPSS 0.71%

Last modified

CVE-2026-60005 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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. EPSS estimates a 0.71% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.2/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

CVSS 4.0
8.8/10

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

EPSS Probability
0.71%

50.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Nginx Gateway Fabric>= 1.3.0, <= 1.6.2
F5Nginx Gateway Fabric>= 2.0.0, < 2.6.7
F5Nginx Ingress Controller>= 3.5.0, <= 3.7.2
F5Nginx Ingress Controller>= 5.0.0, < 5.5.3
F5Nginx Ingress Controller>= 2026-lts-r1, < 2026-lts-r4
F5Nginx Ingress Controller4.0.0
F5Nginx Ingress Controller4.0.1
F5Nginx Instance Manager>= 2.17.0, < 2.22.2
F5Nginx Open Source>= 1.30.0, < 1.30.4
F5Nginx Open Source1.31.2
F5Nginx Plus>= 37.0.0.1, < 37.0.3.1
F5Nginx Plus>= r33, < r36
F5Nginx Plusr36
F5Waf>= 4.11.0, <= 4.16.0
F5Waf>= 5.2.0, <= 5.8.0
F5Waf>= 5.9.0, < 5.13.4

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

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.
How severe is CVE-2026-60005?
CVE-2026-60005 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.
How do I fix CVE-2026-60005?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST