# CVE-2026-111497: Out-of-Bounds Write in Google Brotli Decoder

> CVE-2026-111497: Out-of-Bounds Write in Google Brotli Decoder. CVSS 9.2 (CVSS 4.0), named in 1 status incident(s).

Canonical: https://rewindex.com/cve/CVE-2026-111497
Last updated: 2026-10-24T18:16:47Z

- Published: 2026-10-22 13:35 UTC · Updated: 2026-10-24 18:16 UTC · Assigner: Google
- CVSS: 9.2 (CVSS 4.0) · Severity: Critical
- EPSS: n/a
- CISA KEV: no
- CWE: CWE-252, CWE-787

## Description

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.

## Affected vendors and products

- Google: Brotli

## Status incidents that name it

- 2026-10-23 12:02 UTC [Akamai: Customer Security Advisory: Node.js Brotli Remote Code Execution Vulnerabilities](https://rewindex.com/company/akamai/incidents/fy0lvwqxbdlr.md) (names this CVE): “…will be posted as progress is made. Akamai is aware of the recently published remote code execution vulnerability: CVE-2026-111497.Our subject matter experts are actively investigating and taking the appropriate mitigation actions, while we…”

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-111497)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-111497)
- [https://nodejs.org/en/blog/vulnerability/october-2026-security-releases\#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---high](https://nodejs.org/en/blog/vulnerability/october-2026-security-releases#nodejs-brotli-decoder-out-of-bounds-write-permits-remote-code-execution-cve-2026-111497---high)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-111497 · Markdown: https://rewindex.com/cve/CVE-2026-111497.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-111497 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:25.313Z