{"id":"CVE-2026-49760","summary":"Stack Buffer Overflow in ei_s_print_term at Very Large Integer","details":"Stack-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.","aliases":["EEF-CVE-2026-49760","GHSA-xcxj-5pg2-v72j"],"modified":"2026-07-08T08:13:41.301646991Z","published":"2026-06-10T14:35:36.804Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"3.7.16"},{"fixed":"*"},{"introduced":"17.0"},{"fixed":"*"},{"introduced":"84adefa331c4159d432d22840663c38f155cd4c1"},{"fixed":"0bef277b2d39dc8babb9ceb4f5d0a456f3007111"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"EEF","cwe_ids":["CWE-121"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49760.json"},"references":[{"type":"WEB","url":"https://cna.erlef.org/cves/CVE-2026-49760.html"},{"type":"WEB","url":"https://github.com"},{"type":"WEB","url":"https://osv.dev/vulnerability/EEF-CVE-2026-49760"},{"type":"WEB","url":"https://www.erlang.org/doc/system/versions.html#order-of-versions"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49760.json"},{"type":"ADVISORY","url":"https://github.com/erlang/otp/security/advisories/GHSA-xcxj-5pg2-v72j"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49760"},{"type":"FIX","url":"https://github.com/erlang/otp/commit/0bef277b2d39dc8babb9ceb4f5d0a456f3007111"},{"type":"PACKAGE","url":"https://github.com/erlang/otp"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/erlang/otp","events":[{"introduced":"07b8f441ca711f9812fad9e9115bab3c3aa92f79"},{"fixed":"f835a5a32aeeb70778c958b5c01a401973e8fbe2"},{"introduced":"9e6f6742c4d9e9915ee8af0dcb7d97cf1f836116"},{"fixed":"4567096bddd1ecddb7c973019ca7e769f486aa8f"},{"introduced":"550d7b7898706c7822362c42e7b93120c1d1f29a"},{"fixed":"36b336d7675edfb976768465c5067bc8bc16ee9a"},{"fixed":"0bef277b2d39dc8babb9ceb4f5d0a456f3007111"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"17.0"},{"fixed":"27.3.4.13"},{"introduced":"28.0"},{"fixed":"28.5.0.2"},{"introduced":"29.0"},{"fixed":"29.0.2"}]}}],"versions":["patch-base-28","OTP-28.5","patch-base-27","OTP-27.3.4","OTP-28.4","OTP-27.3.4.12","OTP-28.5.0.1","OTP-29.0.1","OTP-29.0","OTP-27.3.4.9","OTP-27.0","patch-base-26","OTP-26.2.5","OTP-27.3.4.11","OTP-27.3.4.10","OTP-28.0","OTP-27.3.4.8","OTP-27.3.4.6","OTP-27.3.4.7","OTP-27.3","OTP-27.3.4.5","OTP-27.3.4.4","OTP-26.2.3","OTP-28.1","OTP-27.3.4.3","OTP-27.3.3","OTP-27.3.4.2","OTP-26.0","OTP-25.0","OTP-27.3.4.1","OTP-27.3.2","OTP-27.2","OTP-27.3.1","OTP-27.1","OTP-26.2","OTP-26.2.4","OTP-27.0-rc3","OTP-27.0-rc2","OTP-27.0-rc1","OTP-24.0","OTP-26.1","OTP-26.0-rc3","OTP-26.0-rc2","OTP-26.0-rc1","OTP-23.0","OTP-21.0","OTP-25.0-rc3","OTP-25.0-rc2","OTP-25.0-rc1","OTP-22.0","OTP-24.0-rc3","OTP-24.0-rc2","OTP-24.0-rc1","OTP-23.0-rc3","OTP-23.0-rc2","OTP-23.0-rc1","OTP-20.0","OTP-22.0-rc3","OTP-22.0-rc2","OTP-22.0-rc1","OTP-19.0","OTP-21.0-rc2","OTP-18.0","OTP-21.0-rc1","OTP-17.0","OTP-20.0-rc2","OTP-20.0-rc1","OTP-19.0-rc2","OTP-19.0-rc1","OTP-18.0-rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49760.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","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"}]}