CVE-2026-111946: CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere
Description
Plack::Middleware::ETag versions from 0.04 before 0.06 for Perl disclose file inode numbers in the default ETag header. When the response body is a filehandle and the file_etag option is not set, the ETag is built from the file's inode number, modification time and size. Clients receiving affected responses may use the disclosed inode numbers to aid backend fingerprinting and correlation of files served through different URLs.
Affected software
pkg:github/Plack-Middleware-ETagRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CPANSec
- Date Reserved
- 2026-10-17T14:22:00.942Z
- State
- PUBLISHED
Threat ID: 6ad685e42cdf04f6568e738c
Added to database: 10/19/2026, 21:04:36 UTC
Last updated: 10/19/2026, 21:04:36 UTC
Views: 1
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