BREW-TUBEUP-CVE-2020-36846 (GHSA-5V8V-66V8-MWM7)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:44 – Updated: 2026-09-10 01:31 – Source website
VLAI
Summary
Integer overflow in the bundled Brotli C library
Details
A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.
Severity
6.5 (Medium)
References
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "brotli",
"resource_purl": "pkg:pypi/brotli@1.2.0",
"upstream_fixed_in": "1.0.8"
},
"package": {
"ecosystem": "Homebrew",
"name": "tubeup",
"purl": "pkg:brew/tubeup"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2026.5.8_1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/brotli@1.2.0",
"name": "brotli",
"resource": "brotli",
"strategy": "registry",
"subject_version": "1.2.0"
}
]
},
"details": "A buffer overflow exists in the Brotli library versions prior to 1.0.8 where an attacker controlling the input length of a \"one-shot\" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your Brotli library to 1.0.8 or later. If one cannot update, we recommend to use the \"streaming\" API as opposed to the \"one-shot\" API, and impose chunk size limits.",
"id": "BREW-tubeup-CVE-2020-36846",
"modified": "2026-09-10T01:31:23Z",
"published": "2026-08-13T17:44:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8927"
},
{
"type": "WEB",
"url": "https://github.com/bitemyapp/brotli2-rs/issues/45"
},
{
"type": "WEB",
"url": "https://github.com/github/advisory-database/issues/785"
},
{
"type": "WEB",
"url": "https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4801"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4568-1"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2021-0132.html"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2021-0131.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXEQ3GQVELA2T4HNZG7VPMS2HDVXMJRG"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WW62OZEY2GHJL4JCOLJRBSRETXDHMWRK"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W23CUADGMVMQQNFKHPHXVP7RPZJZNN6I"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQLM7ABVCYJLF6JRPF3M3EBXW63GNC27"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMBKACMLSRX7JJSKBTR35UOEP2WFR6QP"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M4VCDOJGL6BK3HB4XRD2WETBPYX2ITF6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J4E265WKWKYMK2RYYSIXBEGZTDY5IQE6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4TOGTZ2ZWDH662ZNFFSZVL3M5AJXV6JF"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/356JOYTWW4BWSZ42SEFLV7NYHL3S3AEH"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00003.html"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/brotli/PYSEC-2020-29.yaml"
},
{
"type": "WEB",
"url": "https://github.com/google/brotli/releases/tag/v1.0.9"
},
{
"type": "WEB",
"url": "https://github.com/google/brotli/releases/tag/v1.0.8"
},
{
"type": "PACKAGE",
"url": "https://github.com/bitemyapp/brotli2-rs"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00108.html"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Integer overflow in the bundled Brotli C library",
"upstream": [
"GHSA-5v8v-66v8-mwm7",
"BIT-brotli-2020-8927",
"BIT-dotnet-2020-8927",
"BIT-dotnet-sdk-2020-8927",
"BIT-powershell-2020-8927",
"CVE-2020-36846",
"CVE-2020-8927",
"GO-2025-3726",
"PYSEC-2020-29",
"RUSTSEC-2021-0131",
"RUSTSEC-2021-0132"
]
}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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