CVE catalog

CVE-2011-4963

nginx: CVE-2011-4963

Severity: Low
Source: [NVD] · [CVE record]
EPSS: 5.96% · Oct 25, 2026

nginx/Windows 1.3.x before 1.3.1 and 1.2.x before 1.2.1 allows remote attackers to bypass intended access restrictions and access restricted files via (1) a trailing . (dot) or (2) certain "$index_allocation" sequences in a request.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	nginx	sid	`1.30.6-2`	not affected
Debian	nginx	forky	`1.30.6-2`	not affected
Debian	nginx	trixie	`1.26.3-3+deb13u7`	not affected
Debian	nginx	trixie-security	`1.26.3-3+deb13u10`	not affected
Debian	nginx	bookworm	`1.22.1-9+deb12u9`	not affected
Debian	nginx	bookworm-security	`1.22.1-9+deb12u10`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	nginx	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	nginx	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	nginx	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	nginx	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libnginx-mod-http-geoip]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · amd64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · amd64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[libnginx-mod-http-image-filter]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · amd64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · amd64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[libnginx-mod-http-perl]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · amd64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · amd64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[libnginx-mod-http-xslt-filter]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · amd64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · amd64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[libnginx-mod-mail]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · amd64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · amd64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[libnginx-mod-stream]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · amd64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · amd64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[libnginx-mod-stream-geoip]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · amd64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · amd64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[nginx]Unknown
Details (4)
- 1.22.1-9+deb12u9 · amd64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · amd64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[nginx-common]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[nginx-core]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[nginx-dev]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[nginx-doc]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[nginx-extras]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · amd64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · amd64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · arm64 · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[nginx-full]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
[nginx-light]Unknown
Source package: [nginx]
Details (4)
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm
- 1.22.1-9+deb12u9 · all · bookworm-security
  Not affected
  dsa · nginx · debian · bookworm

Observed: Oct 23, 2026, 5:05:46 PM UTC

References

[https://security-tracker.debian.org/tracker/CVE-2011-4963]

[Debian Security Tracker] · [FIRST EPSS]