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TI-2011-04276 Aliases CVE-2011-4968GHSA-x9wg-g9hq-p992

Improper input validation in nginx

Priority LOW 29CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

nginx http proxy module does not verify peer identity of https origin server which could facilitate man-in-the-middle attack (MITM)

Why it matters now

EPSS 0.03989 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
nginxnginxthrough 1.6.2—No fix listedCNA
  • nginx Vendornginx Affected through 1.6.2 Fixed in — No fix listed CNA

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:a:f5:nginx:0.7.61:*:*:*:*:*:*:*0.7.61VulnerableF5
cpe:2.3:a:f5:nginx:0.7.62:*:*:*:*:*:*:*0.7.62VulnerableF5
cpe:2.3:a:f5:nginx:0.7.64:*:*:*:*:*:*:*0.7.64VulnerableF5
cpe:2.3:a:f5:nginx:0.7.65:*:*:*:*:*:*:*0.7.65VulnerableF5
cpe:2.3:a:f5:nginx:0.7.66:*:*:*:*:*:*:*0.7.66VulnerableF5
cpe:2.3:a:f5:nginx:0.8.33:*:*:*:*:*:*:*0.8.33VulnerableF5
cpe:2.3:a:f5:nginx:0.8.35:*:*:*:*:*:*:*0.8.35VulnerableF5
cpe:2.3:a:f5:nginx:0.8.36:*:*:*:*:*:*:*0.8.36VulnerableF5
cpe:2.3:a:f5:nginx:0.8.40:*:*:*:*:*:*:*0.8.40VulnerableF5
cpe:2.3:a:f5:nginx:1.2.6:*:*:*:*:*:*:*1.2.6VulnerableF5
  • cpe:2.3:a:f5:nginx:0.7.61:*:*:*:*:*:*:* Versions 0.7.61 Vulnerable ·F5
  • cpe:2.3:a:f5:nginx:0.7.62:*:*:*:*:*:*:* Versions 0.7.62 Vulnerable ·F5
  • cpe:2.3:a:f5:nginx:0.7.64:*:*:*:*:*:*:* Versions 0.7.64 Vulnerable ·F5
  • cpe:2.3:a:f5:nginx:0.7.65:*:*:*:*:*:*:* Versions 0.7.65 Vulnerable ·F5
  • cpe:2.3:a:f5:nginx:0.7.66:*:*:*:*:*:*:* Versions 0.7.66 Vulnerable ·F5
  • cpe:2.3:a:f5:nginx:0.8.33:*:*:*:*:*:*:* Versions 0.8.33 Vulnerable ·F5
  • cpe:2.3:a:f5:nginx:0.8.35:*:*:*:*:*:*:* Versions 0.8.35 Vulnerable ·F5
  • cpe:2.3:a:f5:nginx:0.8.36:*:*:*:*:*:*:* Versions 0.8.36 Vulnerable ·F5
  • cpe:2.3:a:f5:nginx:0.8.40:*:*:*:*:*:*:* Versions 0.8.40 Vulnerable ·F5
  • cpe:2.3:a:f5:nginx:1.2.6:*:*:*:*:*:*:* Versions 1.2.6 Vulnerable ·F5
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-4968
  2. 2026-10-03 Alias added: GHSA-x9wg-g9hq-p992

References

Patch 2

Advisory 2

Other 1

  • TI-2017-05170 Integer overflow in nginx CVSS 3.1HIGH 7.5
  • TI-2021-21251 njs through 0.7.0, used in NGINX, was discovered to contain an out-of-bounds array access… CVSS 3.1CRITICAL 9.8
  • TI-2009-03704 Directory traversal vulnerability in src/http/modules/ngx_http_dav_module.c in nginx (aka… CVSS 2.0MEDIUM 4.9
  • TI-2022-15882 An issue was discovered in Nginx NJS v0.7.5. CVSS 3.1HIGH 7.5
  • TI-2009-03702 src/http/ngx_http_parse.c in nginx (aka Engine X) 0.1.0 through 0.4.14, 0.5.x before… CVSS 2.0MEDIUM 5.0
  • TI-2022-12665 Nginx NJS v0.7.2 was discovered to contain a segmentation violation in the function njs_set_number at src/njs_value.h. CVSS 3.1MEDIUM 5.5
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences