LowVulnerabilityCVE-2026-55458updated 28 Oct 2026, 19:50 UTC
Caddy has an RFC 7230 §6.1 compliance issue / Hop-by-hop headers that leak through
Fix availableOfficial source
| Severity | LowCVSS 2.9 of 10 |
|---|---|
| Being exploited? | UnclearNo reports either way yet |
| Fix available? | Yesgithub.com/caddyserver/caddy/v2 2.11.5 · since 28 Oct 2026 |
| How sure is this? | Official sourceBacked by an official source |
Are you affected?
| Package / product | Affected versions | Fixed in |
|---|---|---|
| github.com/caddyserver/caddy/v2 · go | <= 2.11.4 | 2.11.5 |
Timeline
- 28 Oct 2026, 19:49 UTCPublicly disclosed
- 28 Oct 2026, 19:49 UTCReported by GitHub Advisory · GitHub Advisory
- 28 Oct 2026, 19:50 UTCPicked up by Zero Radar
Sources 1 report, oldest first
Official vendor, government CERT or advisory database
- Caddy has an RFC 7230 §6.1 compliance issue / Hop-by-hop headers that leak throughGitHub Advisory · 28 Oct 2026, 19:49 UTC
Technical details
- ID
- CVE-2026-55458 · GHSA-8qx7-j2v2-x6q5
- CVSS
- 2.9 / 10
- Disclosed
- 28 Oct 2026, 19:49 UTC
- On Zero Radar
- 28 Oct 2026, 19:50 UTC (1 min after disclosure)
- Last change
- 28 Oct 2026, 19:50 UTC
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