Plack::Middleware::ETag versions from 0.04 before 0.06 for Perl disclose file inode numbers in the default ETag header
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Published
5 h ago
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
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Evidence confidence
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Short explanation
Plack-Middleware-ETag versions 0.04 through 0.06 disclose file inode numbers in the default ETag header. This condition allows clients to aid in backend fingerprinting and correlation of files served through different URLs.
Leaking sensitive file inode numbers allows attackers to perform backend fingerprinting and correlate files, which can facilitate further information gathering against the system.
What should be done?
- Follow vendor advisories and updates
- Configure the file_etag option appropriately
Chain of evidence and sources
Plack-Middleware-ETag 0.04 ile 0.06 sürümleri arasındaki Perl bileşenleri varsayılan ETag başlığında inode numaralarını ifşa eder.
Yanıt gövdesi bir dosya tutamağı olduğunda ve file_etag seçeneği ayarlanmadığında ETag inode numarası, değiştirilme zamanı ve boyuttan oluşturulur.
İstemciler ifşa edilen inode numaralarını arka uç parmak izi almak ve dosyaları ilişkilendirmek için kullanabilir.
Show the technical text from the sources
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.
CWE: CWE-497
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-111946 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | CPANSec | Plack-Middleware-ETag | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| The sources have not yet published a verified CVSS metric. | ||||
Patch and Remediation Guide
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-111946 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-111946 weaknesses.
Official Sources and Advisories
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