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{
"dataType": "CVE_RECORD",
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"cveId": "CVE-2026-54890",
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"state": "PUBLISHED",
"assignerShortName": "EEF",
"dateReserved": "2026-06-16T10:47:13.915Z",
"datePublished": "2026-07-27T15:39:03.475Z",
"dateUpdated": "2026-11-11T18:47:44.385Z"
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"value": "<p>Integer Underflow (Wrap or Wraparound) vulnerability in erlang otp erlang/otp (erts modules), erlang otp erts (erts modules) allows Forced Integer Overflow, Excessive Allocation. This vulnerability is associated with program files <code>erts/emulator/beam/external.c</code>, <code>emulator/beam/external.c</code>.</p>\n<p>The <code>BIT_BINARY_EXT</code> tag (77) handler in the External Term Format (ETF) decoder accepts an encoding with both length and trailing-bits fields set to zero. The subsequent computation of the bitstring size underflows an unsigned integer, producing a value of roughly 2^64 that is then passed as a memory allocation size. The allocator aborts the entire node with a message such as <code>Cannot allocate 2305843009213693951 bytes of memory (of type \"binary\")</code>.</p>\n<p>The crash is a VM-level abort, not an Erlang-level exception. It cannot be intercepted by supervision trees, by <code>try</code>/<code>catch</code>, or by passing the <code>[safe]</code> option to <code>binary_to_term/2</code> (which only restricts atom creation and does not perform structural validation of binary encodings).</p>\n<p>Any application that decodes ETF from untrusted sources via <code>binary_to_term/1,2</code> or <code>enif_binary_to_term()</code> is exposed. The Erlang distribution protocol also decodes incoming terms through the same code path, but distribution is expected to run on trusted networks per the OTP Secure Coding Guidelines (DSG-011).</p>\n<p>This issue affects OTP from OTP&nbsp;27.0 before OTP&nbsp;27.3.4.15, OTP&nbsp;28.5.0.4, and OTP&nbsp;29.0.4, corresponding to erts from 15.0 before 15.2.7.11, 16.4.0.4, and 17.0.4.</p>"
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"value": "Integer Underflow (Wrap or Wraparound) vulnerability in erlang otp erlang/otp (erts modules), erlang otp erts (erts modules) allows Forced Integer Overflow, Excessive Allocation. This vulnerability is associated with program files `erts/emulator/beam/external.c`, `emulator/beam/external.c`.\n\nThe `BIT_BINARY_EXT` tag (77) handler in the External Term Format (ETF) decoder accepts an encoding with both length and trailing-bits fields set to zero. The subsequent computation of the bitstring size underflows an unsigned integer, producing a value of roughly 2^64 that is then passed as a memory allocation size. The allocator aborts the entire node with a message such as `Cannot allocate 2305843009213693951 bytes of memory (of type \"binary\")`.\n\nThe crash is a VM-level abort, not an Erlang-level exception. It cannot be intercepted by supervision trees, by `try`/`catch`, or by passing the `[safe]` option to `binary_to_term/2` (which only restricts atom creation and does not perform structural validation of binary encodings).\n\nAny application that decodes ETF from untrusted sources via `binary_to_term/1,2` or `enif_binary_to_term()` is exposed. The Erlang distribution protocol also decodes incoming terms through the same code path, but distribution is expected to run on trusted networks per the OTP Secure Coding Guidelines (DSG-011).\n\nThis issue affects OTP from OTP 27.0 before OTP 27.3.4.15, OTP 28.5.0.4, and OTP 29.0.4, corresponding to erts from 15.0 before 15.2.7.11, 16.4.0.4, and 17.0.4."
}
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"value": "Integer Underflow (Wrap or Wraparound) vulnerability in erlang otp erlang/otp (erts modules), erlang otp erts (erts modules) allows Forced Integer Overflow, Excessive Allocation. This vulnerability is associated with program files erts/emulator/beam/external.c, emulator/beam/external.c.\n\nThe BIT_BINARY_EXT tag (77) handler in the External Term Format (ETF) decoder accepts an encoding with both length and trailing-bits fields set to zero. The subsequent computation of the bitstring size underflows an unsigned integer, producing a value of roughly 2^64 that is then passed as a memory allocation size. The allocator aborts the entire node with a message such as Cannot allocate 2305843009213693951 bytes of memory (of type \"binary\").\n\nThe crash is a VM-level abort, not an Erlang-level exception. It cannot be intercepted by supervision trees, by try/catch, or by passing the [safe] option to binary_to_term/2 (which only restricts atom creation and does not perform structural validation of binary encodings).\n\nAny application that decodes ETF from untrusted sources via binary_to_term/1,2 or enif_binary_to_term() is exposed. The Erlang distribution protocol also decodes incoming terms through the same code path, but distribution is expected to run on trusted networks per the OTP Secure Coding Guidelines (DSG-011).\n\nThis issue affects OTP from OTP 27.0 before OTP 27.3.4.15, OTP 28.5.0.4, and OTP 29.0.4, corresponding to erts from 15.0 before 15.2.7.11, 16.4.0.4, and 17.0.4."
}
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"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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"descriptions": [
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"cweId": "CWE-789",
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{
"cweId": "CWE-1284",
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"references": [
{
"name": "binary_to_term crash on crafted BIT_BINARY_EXT input",
"tags": [
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"url": "https://github.com/erlang/otp/security/advisories/GHSA-54pw-5645-jh86"
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"name": "EEF CNA record for CVE-2026-54890",
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