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Incorrect Behavior Order: Validate Before Canonicalize

🗓️ 02 Apr 2026 18:20:47Reported by Snyk Security DatabaseType 
snyk
 snyk
🔗 security.snyk.io👁 21 Views

Rack Static flaw allows URL-encoded paths to bypass headers; upgrade to 2.2.23, 3.1.21 or 3.2.6+.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-34786
2 Apr 202616:44
–attackerkb
ibm
IBM Security Bulletins
Security Bulletin: Multiple vulnerabilities in IBM Aspera Console
16 Apr 202622:21
–ibm
bdu_fstec
BDU FSTEC
Rack Modular Interface Bypass
3 Jun 202600:00
–bdu_fstec
cgr
Chainguard
CVE-2026-34786 vulnerabilities
6 Apr 202601:18
–cgr
cnnvd
CNNVD
Rack security vulnerabilities
2 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-34786
2 Apr 202616:44
–cve
cvelist
Cvelist
CVE-2026-34786 Rack: Rack::Static header_rules bypass via URL-encoded paths
2 Apr 202616:44
–cvelist
debian
Debian
[SECURITY] [DLA 4706-1] ruby-rack security update
30 Jul 202618:46
–debian
debian
Debian
[SECURITY] [DSA 6492-1] ruby-rack security update
10 Sep 202620:35
–debian
debiancve
Debian CVE
CVE-2026-34786
2 Apr 202616:44
–debiancve
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Vulners
Node
OR
rack_projectrackRange<2.2.23
rack_projectrackRange3.0.0.beta1–3.1.21
rack_projectrackRange3.2.0–3.2.6

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08 May 2026 13:30Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.15.3 - 6.5
CVSS 46.9
EPSS0.00195
SSVC
21