OESA-2026-4540

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4540

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-4540.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-4540

Upstream

CVE-2026-111497

Published

2026-10-29T09:02:42Z

Modified

2026-10-29T09:15:31Z

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

brotli security update

Details

Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression.

Security Fix(es):

A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream.

Users need to update any Brotli libraries or binaries between 1.0.3 through 1.2.0 to the latest available version: 1.0.10 or 1.1.1 or 1.2.1.(CVE-2026-111497)

Database specific

{
    "severity":  "Critical"
}

References

Affected packages

openEuler:22.03-LTS-SP4 / brotli

Package

Name: brotli
Purl: pkg:rpm/openEuler/brotli&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.0.10-1.oe2203sp4

Ecosystem specific

{
    "aarch64":  [
        "brotli-1.0.10-1.oe2203sp4.aarch64.rpm",
        "brotli-debuginfo-1.0.10-1.oe2203sp4.aarch64.rpm",
        "brotli-debugsource-1.0.10-1.oe2203sp4.aarch64.rpm",
        "brotli-devel-1.0.10-1.oe2203sp4.aarch64.rpm",
        "python3-brotli-1.0.10-1.oe2203sp4.aarch64.rpm"
    ],
    "noarch":  [
        "brotli-help-1.0.10-1.oe2203sp4.noarch.rpm"
    ],
    "src":  [
        "brotli-1.0.10-1.oe2203sp4.src.rpm"
    ],
    "x86_64":  [
        "brotli-1.0.10-1.oe2203sp4.x86_64.rpm",
        "brotli-debuginfo-1.0.10-1.oe2203sp4.x86_64.rpm",
        "brotli-debugsource-1.0.10-1.oe2203sp4.x86_64.rpm",
        "brotli-devel-1.0.10-1.oe2203sp4.x86_64.rpm",
        "python3-brotli-1.0.10-1.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-4540.json"