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.
Metrics
Affected Vendors & Products
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No advisories yet.
Solution
Upgrade to Plack-Middleware-ETag 0.06 or later. Where the file_etag option is set, remove the use of "inode".
Workaround
For deployments that cannot upgrade to 0.06, where the file_etag option is set, remove the use of "inode". If the file_etag option is not specified, change it to ["mtime", "size"].
Mon, 19 Oct 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Plack::Middleware::ETag versions from 0.04 before 0.06 for Perl disclose file inode numbers in the default ETag header | |
| Weaknesses | CWE-497 | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-10-19T20:54:56.964Z
Reserved: 2026-10-17T14:22:00.942Z
Link: CVE-2026-111946
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-19T21:17:06.093
Modified: 2026-10-19T21:17:06.093
Link: CVE-2026-111946
Redhat
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OpenCVE Enrichment
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