{"affected":[{"ranges":[{"events":[{"introduced":"84adefa331c4159d432d22840663c38f155cd4c1"},{"fixed":"0bef277b2d39dc8babb9ceb4f5d0a456f3007111"}],"repo":"https://github.com/erlang/otp","type":"GIT"}]}],"aliases":["GHSA-xcxj-5pg2-v72j","CVE-2026-49760"],"credits":[{"name":"Jonatan Männchen / EEF","type":"FINDER"},{"name":"Sverker Eriksson","type":"REMEDIATION_DEVELOPER"}],"database_specific":{"capec_ids":["CAPEC-8"],"cpe_ids":["cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"],"cwe_ids":["CWE-121"]},"details":"## Summary\n\nStack-based Buffer Overflow vulnerability in Erlang OTP (erl\\_interface) allows Stack-based Buffer Overflow.\n\nThis vulnerability is associated with program file lib/erl\\_interface/src/misc/ei\\_printterm.c and program routine ei\\_s\\_print\\_term.\n\nThe C function ei\\_s\\_print\\_term uses an internal 2000-character stack buffer to format terms. When called with an encoded Erlang term containing a very large integer (encoded representation exceeding 2000 characters), the buffer overflows. The overflow bytes are restricted to the ASCII values of 0-9 and A-F, which limits exploitation to Denial of Service.\n\nThe companion function ei\\_print\\_term, which prints directly to a FILE instead of a memory buffer, does not contain this bug.\n\nThis issue affects OTP from OTP 17.0 before 27.3.4.13, 28.5.0.2 and 29.0.2, corresponding to erl\\_interface from 3.7.16 before 5.5.2.1, 5.7.0.1 and 5.8.1.\n\n## Workaround\n\nAvoid calling ei\\_s\\_print\\_term with untrusted data whose encoded integer representation could exceed 2000 characters.","id":"EEF-CVE-2026-49760","modified":"2026-06-10T14:38:46.622Z","published":"2026-06-10T14:35:36.804Z","references":[{"type":"ADVISORY","url":"https://github.com/erlang/otp/security/advisories/GHSA-xcxj-5pg2-v72j"},{"type":"WEB","url":"https://cna.erlef.org/cves/CVE-2026-49760.html"},{"type":"WEB","url":"https://www.erlang.org/doc/system/versions.html#order-of-versions"},{"type":"FIX","url":"https://github.com/erlang/otp/commit/0bef277b2d39dc8babb9ceb4f5d0a456f3007111"}],"related":[],"schema_version":"1.7.3","severity":[{"score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","type":"CVSS_V4"}],"summary":"Stack Buffer Overflow in ei_s_print_term at Very Large Integer","upstream":[]}