Caddy 2.11 lifecycle
Current status
Caddy 2.11 is currently in standard support.
Security: 4 tracked advisories affecting this line · 1 in CISA KEV. Details below — lifecycle and vulnerability status are separate.
Official lifecycle source: Caddy GitHub Releases
- Support phase
- standard support
- End of life
- Not officially published
- Latest release
- 2.11.4
- Released
- 3 Jun 2026
At a glance
- Version line
- 2.11
- Initial release
- 23 Feb 2026
- Lifecycle phase
- standard support
- Latest stable
- 2.11.4
- Latest release date
- 3 Jun 2026
- EOL
- Not officially published
- Risk
- low
- Releases tracked
- 4
Lifecycle timeline
Phases from published LifecyclePeriod records. Missing phases are not inferred.
Release
23 Feb 2026
standard supportcurrent
23 Feb 2026 → —
Source: Caddy GitHub Releases
Caddy 2.11 is currently in standard support.
Known exploited vulnerabilities
CVE entries that CISA lists in the Known Exploited Vulnerabilities catalogue, including due dates and ransomware use when published. CVSS shown when NVD enrichment is available.
- CVE-2023-44487Known exploited
HTTP/2 Rapid Reset Attack Vulnerability
- CISA KEV:
- listed · added 2023-10-10 · due 2023-10-31
- Required action:
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CVSS:
- 7.5 (high) · NVD
- CWE:
- CWE-400
- Affected:
- <=2.427; <4.2.2; <3.4.2; <4.1.100; <10.5.3; <9.4.0
- Fixed in:
- 4.2.2, 3.4.2, 4.1.100, 10.5.3, 9.4.0
Security
Advisories affecting Caddy 2.11 (OSV.dev evidence). Known exploited status, due dates, and ransomware use from CISA KEV when matched.
- Known vulnerabilities
- 4
- Known exploited
- 1
- Highest CVSS
- 7.5
- CVE-2023-44487Known exploited
HTTP/2 Rapid Reset Attack Vulnerability
- CISA KEV:
- listed · added 2023-10-10 · due 2023-10-31
- Required action:
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CVSS:
- 7.5 (high) · NVD
- CWE:
- CWE-400
- Affected:
- <=2.427; <4.2.2; <3.4.2; <4.1.100; <10.5.3; <9.4.0
- Fixed in:
- 4.2.2, 3.4.2, 4.1.100, 10.5.3, 9.4.0
- CVE-2026-52845
Caddy: FastCGI header normalization bypass in `forward_auth copy_headers`
- Affected:
- <2.11.4
- Fixed in:
- 2.11.4
- Source:
- OSV source · Advisory
- CVE-2026-52844
Caddy: Windows `file_server` path authorization bypass via encoded backslash
- Affected:
- <2.11.4
- Fixed in:
- 2.11.4
- Source:
- OSV source · Advisory
- CVE-2026-52846
Caddy: stripHTML template function bypass
- Affected:
- <2.11.4
- Fixed in:
- 2.11.4
- Source:
- OSV source · Advisory
Latest release
Previous releases
2.11.3
12 May 2026
2.11.2
6 Mar 2026
2.11.1
23 Feb 2026
Release history
4 concrete releases tracked for this line.
Release activity
- Total releases
- 4
- Last 30 days
- 0
- Last 90 days
- 0
- Avg. interval
- ~33 days
- Most recent
- 3 Jun 2026
Should I use this version?
Suitable for new deployments
Caddy 2.11 is currently supported (standard support).
Version comparison
Compact comparison against the nearest relevant release lines.
Sources
Where this information comes from.
Lifecycle sources
- Caddy GitHub Releasesfirst party · high confidence
Official source: https://github.com/caddyserver/caddy/releases
Last verified 2 Sept 2026
- Caddy go.mod Go Toolchainfirst party
Official source: https://github.com/caddyserver/caddy
Verification time not recorded
- OSV.devfirst party
Official source: https://osv.dev
Verification time not recorded
- NVD (NIST)first party
Official source: https://nvd.nist.gov
Verification time not recorded
- CISA Known Exploited Vulnerabilitiesfirst party
Official source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Verification time not recorded
Release sources
- Caddy GitHub Releasesfirst party · high confidence
Official source: https://github.com/caddyserver/caddy/releases
Last verified 2 Sept 2026
Data coverage
Last checked = last successful upstream check. Latest source update = when upstream content last changed.
- Releases tracked
- 4
- Lifecycle periods
- 1
- EOL
- Not officially published
- Provenance records
- 2
- Data last checked
- 2 Sept 2026
- Latest source update
- 2 Sept 2026
EOL: Not officially published