CVE-2026-111497

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Source
https://cve.org/CVERecord?id=CVE-2026-111497
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111497.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-111497
Downstream
Published
2026-10-22T13:35:41Z
Modified
2026-10-23T02:45:27Z
Severity
  • 9.2 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Out-of-Bounds Write in Google Brotli Decoder
Details

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.

Database specific 
{
    "cna_assigner":  "Google",
    "cwe_ids":  [
        "CWE-252",
        "CWE-787"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111497.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "1.0.3"
                        },
                        {
                            "fixed":  "1.0.10"
                        },
                        {
                            "introduced":  "1.1.0"
                        },
                        {
                            "fixed":  "1.1.1"
                        },
                        {
                            "introduced":  "1.2.0"
                        },
                        {
                            "fixed":  "1.2.1"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StandardRange"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/google/brotli

Affected ranges

Type
GIT
Repo
https://github.com/google/brotli
Events
Introduced
533843e3546cd24c8344eaa899c6b0b681c8d222
Last Affected
028fb5a23661f123017c060daa546b55cf4bde29
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "1.0.3"
                },
                {
                    "last_affected":  "1.2.0"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

Other
dev/null
go/brotli/v1.*
go/brotli/v1.1.1-rc0
go/cbrotli/v1.*
go/cbrotli/v1.1.0
go/cbrotli/v1.1.0.bcr.0
go/cbrotli/v1.1.0.bcr.1
go/cbrotli/v1.1.1-rc0
v1.*
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1.0
v1.1.0rc
v1.2.0
v1.2.0rc1
v1.2.0rc2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111497.json"