CVE-2026-34763
Rack: Rack::Directory info disclosure and DoS via unescaped regex interpolation
Description
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Directory interpolates the configured root path directly into a regular expression when deriving the displayed directory path. If root contains regex metacharacters such as +, *, or ., the prefix stripping can fail and the generated directory listing may expose the full filesystem path in the HTML output. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
Red Hat Inc.
commercial·USaka red hat
rack
oss-project
Canonical Ltd.
commercial·GBaka canonical
ООО «Ред Софт»
commercial·RUaka red soft
АО «ИВК»
commercial·RUaka ivk
Сообщество свободного программного обеспечения
oss-projectaka fsf
Exploitability
Official Patch Available
References
https://github.com/rack/rack/security/advisories/GHSA-7mqq-6cf9-v2qp
github.com
https://github.com/rack/rack
github.com
https://github.com/rack/rack/security/advisories/GHSA-7mqq-6cf9-v2qp
github.com
and 4 more references View all →
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