CVE-2026-49760Stack-based Buffer Overflow vulnerability in Erlang OTP (erl_interface) allows Stack-based Buffer Overflow.
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Stack-based Buffer Overflow vulnerability in Erlang OTP (erl_interface) allows Stack-based Buffer Overflow. This vulnerability is associated with program file lib/erl_interface/src/misc/ei_printterm.c and program routine ei_s_print_term. The 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. The companion function ei_print_term, which prints directly to a FILE instead of a memory buffer, does not contain this bug. This issue affects OTP from OTP 17.0 before OTP 27.3.4.13, OTP 28.5.0.2, and OTP 29.0.2, corresponding to erl_interface from 3.7.16 before 5.5.2.1, 5.7.0.1, and 5.8.1. Whether OTP before OTP 17.0, corresponding to erl_interface before 3.7.16, is affected is unknown.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-121
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Sep 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
erlang erl_interface erlang:erl_interface | from 3.7.16 before 5.5.2.1; from 5.7 before 5.7.0.1; from 5.8 before 5.8.1 | NVD |
erlang erlang/otp erlang:erlang/otp | from 17.0 before 27.3.4.13; from 28.0 before 28.5.0.2; from 29.0 before 29.0.2 | NVD |
References
- https://cna.erlef.org/cves/CVE-2026-49760.htmlmitigation, third-party-advisory
- https://github.com/erlang/otp/commit/0bef277b2d39dc8babb9ceb4f5d0a456f3007111patch
- https://github.com/erlang/otp/security/advisories/GHSA-xcxj-5pg2-v72jmitigation, vendor-advisory
- https://osv.dev/vulnerability/EEF-CVE-2026-49760mitigation, third-party-advisory
- https://www.erlang.org/doc/system/versions.html#order-of-versionsproduct
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.