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.
AV AC PR UI S C I A CVSS EPSS %ile KEV N H N R U L L N 4.2 .0019 8.9 —
AFFECTED Product Versions Fixed caddy < 2.11.4 – —
TIMELINE Jun 8 Reserved by GitHub_M Jun 23 EXPLOIT PUBLISHED — CVE-2026-52846 (caddyserver caddy). Public exploit reference added. Jun 23 Published (CNA: GitHub_M)
Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, Caddy’s stripHTML template function cannot reliably remove all HTML tags from input strings. Certain malformed HTML, such as <<>img src=x onerror=alert()>, can bypass the tag-stripping logic, potentially leaving dangerous content in the output if it is later rendered as HTML. This may allow client-side XSS in cases where untrusted strings are rendered unsafely. This vulnerability is fixed in 2.11.4.
| Date | Event | Detail |
|---|---|---|
| June 8, 2026 | Reserved | Reserved by GitHub_M |
| June 23, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-52846 (caddyserver caddy). Public exploit reference added. |
| June 23, 2026 | Published | Published (CNA: GitHub_M) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| caddyserver | caddy | — | < 2.11.4 | — |
Authoritative record: CVE-2026-52846 at cve.org
Vendors: caddyserver
Weaknesses: CWE-116
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-52846 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.