Ubuntu’s security feed notice USN-8827-1, published on September 28, 2026, reports vulnerabilities in Erlang. Listed impacts include denial of service from slow connections, malformed data, excessive resource use, or server failures; buffer overflows that may cause a crash or code execution; and Erlang TLS clients accepting cipher suites they did not offer, potentially allowing communications to be intercepted and modified.
The notice also describes HTTP server issues: conflicting message-framing headers may permit request smuggling, while malformed chunk sizes and chunked request bodies without an adequate size limit may cause a crash or excessive resource use. Another issue involves equivalent request paths and differences in letter case. The feed headline mentions authentication bypass, but the supplied text ends before giving details of that item.
The identifiers listed include CVE-2026-42792, CVE-2026-55737, CVE-2026-54890, CVE-2026-75538, CVE-2026-59250, CVE-2026-55953, CVE-2026-58227, CVE-2026-59251, CVE-2026-23941, CVE-2026-73812, CVE-2026-69664, and CVE-2026-74835. The text says some issues affect only specified Ubuntu releases: Ubuntu 24.04 LTS and 26.04 LTS for CVE-2026-55737; 26.04 LTS for CVE-2026-54890 and CVE-2026-59251; and 22.04 LTS, 24.04 LTS, and 26.04 LTS for CVE-2026-58227.
To assess exposure, consult the original USN-8827-1 notice on Ubuntu’s security site and verify affected packages and versions, available fixes, and the state of your systems. Compare the CVE identifiers with your inventory and update records; do not assume every release or installation is affected. The supplied feed text is truncated, so check the original for complete details,