CVE-2026-93709
MEDIUMDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 24% of all known CVEs.
References
Related Vulnerabilities
Other CWE-41 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2025-21269 | Medium | 4.3 | 4.6% | - | Fix |
| CVE-2025-21247 | Medium | 4.3 | 3.1% | - | Fix |
| CVE-2025-21219 | Medium | 4.3 | 3.0% | - | Fix |
| CVE-2025-21189 | Medium | 4.3 | 3.0% | - | Fix |
| CVE-2024-30036 | Medium | 6.5 | 2.3% | - | Fix |
| CVE-2025-21268 | Medium | 4.3 | 2.0% | - | Fix |
Common questions
How do I fix CVE-2026-93709?
Upgrade libdancer2-perl on debian unstable to 2.2.2-1 or later.
Is CVE-2026-93709 being actively exploited?
Not that we know of. CVE-2026-93709 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.33% is the estimated probability that it will be exploited in the next 30 days. That is higher than 24% of all scored CVEs.
How severe is CVE-2026-93709?
CVE-2026-93709 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-93709 affect?
Published advisories record a fix for libdancer2-perl (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2026-93709
Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-23.