High severity7.5NVD Advisory· Published Jul 23, 2019· Updated Jun 17, 2026
CVE-2019-14243
CVE-2019-14243
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mastercactapus/proxyprotocolGo | < 0.0.2 | 0.0.2 |
Affected products
3- mastercactapus/proxyprotocoldescription
Patches
Vulnerability mechanics
References
8- github.com/mastercactapus/proxyprotocol/commit/5c4a101121fc3e868026189c7a73f7f19eef90acnvdPatchThird Party AdvisoryWEB
- github.com/mastercactapus/proxyprotocol/issues/1nvdExploitThird Party AdvisoryWEB
- caddy.community/t/dos-in-http-proxyprotocol-plugin/6014nvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-85c5-ccm8-vr96ghsaADVISORY
- github.com/mastercactapus/caddy-proxyprotocol/issues/8nvdIssue TrackingThird Party AdvisoryWEB
- github.com/mastercactapus/proxyprotocol/compare/ef496d7...5c4a101nvdThird Party AdvisoryWEB
- github.com/mastercactapus/proxyprotocol/releases/tag/v0.0.2nvdRelease NotesThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2019-14243ghsaADVISORY
News mentions
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