What is the CVSS score of CVE-2026-27585?

CVE-2026-27585 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of TLS are affected by CVE-2026-27585?

Organizations using Caddy should be aware of notable risk from CVE-2026-27585, a input validation vulnerability rated CVSS 6.5. Exploitation could compromise the security of affected deployments.. A patch is available.

Is there a public PoC exploit available for CVE-2026-27585?

Yes, a public proof-of-concept exploit is available for CVE-2026-27585. Prioritise patching immediately. EPSS: 0.1%.

TLS CVE-2026-27585

MEDIUM

Improper Input Validation (CWE-20)

2026-02-24 security-advisories@github.com

GHSA-4xrr-hq4w-6vf4

TLS Caddy Suse

6.5

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 25, 2026 - 17:13 vuln.today

Public exploit code

CVE Published

Feb 24, 2026 - 17:29 nvd

MEDIUM 6.5

DescriptionNVD

Caddy is an extensible server platform that uses TLS by default. Prior to version 2.11.1, the path sanitization routine in file matcher doesn't sanitize backslashes which can lead to bypassing path related security protections. It affects users with specific Caddy and environment configurations. Version 2.11.1 fixes the issue.

AnalysisAI

Caddy versions prior to 2.11.1 fail to sanitize backslashes in file path matching, allowing attackers to bypass path-based security controls through specially crafted requests. The vulnerability affects systems with specific Caddy configurations and has public exploit code available. …

RemediationAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-27585 vulnerability details – vuln.today

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TLS CVE-2026-27585

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

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External POC / Exploit Code