CVE-2019-14243
headerv2.go in mastercactapus proxyprotocol before 0.0.2, as used in the mastercactapus caddy-proxyprotocol plugin through 0.0.2 for…
- 7.5HighCVSS base score
- 4.3%Exploitation in 30 daysEPSS · top 8.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
headerv2.go in mastercactapus proxyprotocol before 0.0.2, as used in the mastercactapus caddy-proxyprotocol plugin through 0.0.2 for Caddy, allows remote attackers to cause a denial of service (webserver panic and daemon crash) via a crafted HAProxy PROXY v2 request with truncated source/destination address data.
Timeline
ID reserved
By mitre
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 4.3% · top 8.7% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/mastercactapus/proxyprotocolGHSA-85c5-ccm8-vr96 (opens in a new tab)
References
References6
- https://caddy.community/t/dos-in-http-proxyprotocol-plugin/6014 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/mastercactapus/proxyprotocol/issues/1 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/mastercactapus/caddy-proxyprotocol/issues/8 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/mastercactapus/proxyprotocol/compare/ef496d7...5c4a101 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/mastercactapus/proxyprotocol/commit/5c4a101121fc3e868026189c7a73f7f19eef90ac (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/mastercactapus/proxyprotocol/releases/tag/v0.0.2 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-3110 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-85c5-ccm8-vr96 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-14243)Record last updated .