CVE-2026-93709

Dancer2 versions before 2.2.0 for Perl serve a layout as a page when an equivalent spelling of its path misses the guard in the AutoPage handler. The handler compares the request path against the layout directory name as text, while the lookup that follows canonicalises it. A doubled slash, a dot segment, a percent-encoded slash, or a different capitalisation on a case-insensitive filesystem therefore misses the guard. The handler is off by default, enabled with auto_page. The layout wrapping every page is already public, so this discloses one of the application's other layouts.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/PerlDancer/Dancer2/commit/293fce08812b0928f34ab2d7b9357450707c3630.patch
https://github.com/PerlDancer/Dancer2/commit/753b385350a54acb8d4b686723890205268634a8.patch
https://github.com/PerlDancer/Dancer2/issues/1823
https://metacpan.org/release/CROMEDOME/Dancer2-2.2.0/changes
http://www.openwall.com/lists/oss-security/2026/09/22/1

Configurations

No configuration.

History

23 Sep 2026, 20:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3

22 Sep 2026, 03:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/09/22/1 -

22 Sep 2026, 01:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-22 01:16

Updated : 2026-09-23 20:17

NVD link : CVE-2026-93709

Mitre link : CVE-2026-93709

CVE.ORG link : CVE-2026-93709

JSON object : View

Products Affected

No product.

CWE

CWE-41

Improper Resolution of Path Equivalence

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