boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-52844HIGH
caddyserver caddy — Caddy: Windows `file_server` path authorization bypass via encoded backslash
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  N  N    7.5   .0048   39.4     —
AFFECTED
  Product  Versions    Fixed
  caddy    < 2.11.4 –  —
TIMELINE
  Jun 8   Reserved by GitHub_M
  Jun 23  EXPLOIT PUBLISHED — CVE-2026-52844 (caddyserver caddy). Public exploit reference added.
  Jun 23  Published (CNA: GitHub_M)
CWE-22, CWE-284 · CNA: GitHub_M · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, on Windows, Caddy path matchers treat /private\secret.txt as outside /private/*, but file_server later resolves the same request path as private\secret.txt on disk. An unauthenticated remote client can bypass Caddy path-scoped auth/deny routes protecting /private/*. This vulnerability is fixed in 2.11.4.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
June 8, 2026ReservedReserved by GitHub_M
June 23, 2026EXPLOIT PUBLISHEDEXPLOIT PUBLISHED — CVE-2026-52844 (caddyserver caddy). Public exploit reference added.
June 23, 2026PublishedPublished (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
VendorProduct / PackageEcosystemVersion introducedFixed
caddyservercaddy< 2.11.4

Weaknesses

CWE-22 · CWE-284

References (1)

Related

Authoritative record: CVE-2026-52844 at cve.org

Vendors: caddyserver

Weaknesses: CWE-22 · CWE-284

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-52844 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.