ALPINE-CVE-2026-3849
- Source
- https://security.alpinelinux.org/vuln/CVE-2026-3849
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-3849.json
- JSON Data
- https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-3849
- Upstream
- Published
- 2026-03-19T21:17:13Z
- Modified
- 2026-11-03T06:33:02Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Stack Buffer Overflow in wc_HpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH (Encrypted Client Hello) support, where a maliciously crafted ECH config could cause a stack buffer overflow on the client side, leading to potential remote execution and client program crash. This could be exploited by a malicious TLS server supporting ECH. Note that ECH is off by default, and is only enabled with enable-ech.
- References
Affected packages
Alpine:v3.23 / wolfssl
Package
- Name
- wolfssl
- Purl
- pkg:apk/alpine/wolfssl?arch=source