DEBIAN-CVE-2026-108981

Source
https://security-tracker.debian.org/tracker/CVE-2026-108981
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-108981.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-108981
Upstream
Published
2026-10-12T03:17:18Z
Modified
2026-10-12T10:00:11Z
Severity
  • 3.6 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
[none]
Details

ngx_cache_purge before 3.0.4 can allow file deletion via a symlink attack in certain situations where nginx and a served application (e.g., WordPress) run under the same user account. The attacker must be able to create a symlink inside the cache path. Version 3.0.4 fixes this for the case of a symlink created at an arbitrary earlier time, but does not resolve an applicable TOCTOU race condition. (The ngx_cache_purge module follows symlinks while walking the cache directory tree during purge operations. The module relies on nginx's ngx_walk_tree(), which relies on stat() and therefore follows symlinks.)

References

Affected packages

Debian:12 / libnginx-mod-http-cache-purge

Package

Name
libnginx-mod-http-cache-purge
Purl
pkg:deb/debian/libnginx-mod-http-cache-purge?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:2.*
1:2.3-4
1:2.3-5~exp1
1:2.3-5
1:2.3-6
1:2.5.3-1
1:2.5.3-2
1:2.5.3-3
1:2.5.3-4
1:2.5.4-1
1:2.5.5-1
1:2.5.6-1
1:3.*
1:3.0.2-1
1:3.0.3-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-108981.json"

Debian:13 / libnginx-mod-http-cache-purge

Package

Name
libnginx-mod-http-cache-purge
Purl
pkg:deb/debian/libnginx-mod-http-cache-purge?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:2.*
1:2.5.3-3
1:2.5.3-4
1:2.5.4-1
1:2.5.5-1
1:2.5.6-1
1:3.*
1:3.0.2-1
1:3.0.3-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-108981.json"

Debian:14 / libnginx-mod-http-cache-purge

Package

Name
libnginx-mod-http-cache-purge
Purl
pkg:deb/debian/libnginx-mod-http-cache-purge?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:2.*
1:2.5.3-3
1:2.5.3-4
1:2.5.4-1
1:2.5.5-1
1:2.5.6-1
1:3.*
1:3.0.2-1
1:3.0.3-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-108981.json"