CVE-2023-4863: Google Chromium WebP Heap-Based Buffer Overflow Vulnerability

Reference page built from the source records below, each shown as its source publishes it. Dataset version ref-bd1fe3866fd3, updated 2026-11-02T23:39:54.475Z.

CISA Known Exploited Vulnerabilities

Name
Google Chromium WebP Heap-Based Buffer Overflow Vulnerability
Vendor
Google
Product
Chromium WebP
Added to the catalog
2023-09-13
Due date for US federal agencies
2023-10-04
Weaknesses
CWE-787
Catalog version
2026.10.30

Google Chromium WebP contains a heap-based buffer overflow vulnerability that allows a remote attacker to perform an out-of-bounds memory write via a crafted HTML page. This vulnerability can affect applications that use the WebP Codec.

Required action (CISA)

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status
Analyzed
Published
2023-09-12T15:15:24.327
Last modified
2026-06-17T06:38:46.547
Weaknesses
CWE-787

Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

MetricScoreSeverityVectorScored by
CVSS 3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H[email protected] (Primary)
CVSS 3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

References

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:42:08.214Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-4863

CVE record

Assigner
Chrome
State
PUBLISHED
Published
2023-09-12T14:24:59.275Z
Updated
2025-10-21T23:05:38.429Z
Problem types
Heap buffer overflow

Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

References

Read on 2026-11-03T02:05:00.955Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2023/4xxx/CVE-2023-4863.json

GitHub Advisory Database

GHSA-j7hp-h8jx-5ppr: libwebp: OOB write in BuildHuffmanTable

Severity (GitHub)
high
CVSS
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-787
Published
2023-09-12T15:30:20Z
Updated
2025-07-09T15:52:20Z
  • rust libwebp-sys2: affected < 0.1.8, first patched 0.1.8
  • rust libwebp-sys: affected < 0.9.3, first patched 0.9.3
  • npm electron: affected >= 22.0.0, < 22.3.24, first patched 22.3.24
  • npm electron: affected >= 24.0.0, < 24.8.3, first patched 24.8.3
  • npm electron: affected >= 25.0.0, < 25.8.1, first patched 25.8.1
  • npm electron: affected >= 26.0.0, < 26.2.1, first patched 26.2.1
  • npm electron: affected >= 27.0.0-beta.1, < 27.0.0-beta.2, first patched 27.0.0-beta.2
  • nuget SkiaSharp: affected >= 2.0.0, < 2.88.6, first patched 2.88.6
  • pip Pillow: affected < 10.0.1, first patched 10.0.1
  • rust webp: affected < 0.2.6, first patched 0.2.6
  • nuget magick.net-q16-anycpu: affected < 13.3.0, first patched 13.3.0
  • nuget magick.net-q16-hdri-anycpu: affected < 13.3.0, first patched 13.3.0
  • nuget magick.net-q16-x64: affected < 13.3.0, first patched 13.3.0
  • nuget magick.net-q8-anycpu: affected < 13.3.0, first patched 13.3.0
  • nuget magick.net-q8-openmp-x64: affected < 13.3.0, first patched 13.3.0
  • nuget magick.net-q8-x64: affected < 13.3.0, first patched 13.3.0
  • go github.com/chai2010/webp: affected < 0.0.0-20250406010349-76805d5a8860, first patched 0.0.0-20250406010349-76805d5a8860
  • go github.com/chai2010/webp: affected >= 1.1.2, < 1.4.0, first patched 1.4.0
  • go github.com/chai2010/webp: affected >= 0.0.0, < 1.1.2-0.20250406010349-76805d5a8860, first patched 1.1.2-0.20250406010349-76805d5a8860

Heap buffer overflow in libwebp allow a remote attacker to perform an out of bounds memory write via a crafted HTML page.

Read on 2026-11-03T08:52:29.387Z under licence ghsa-cc-by-4.0@9e5f1b3c from https://api.github.com/advisories/GHSA-j7hp-h8jx-5ppr

Also known as / affected packages

GHSA-j7hp-h8jx-5ppr

Also known as: CVE-2023-4863, CVE-2023-5129. OSV.dev record, GitHub advisory.

  • crates.io libwebp-sys2: introduced 0, fixed 0.1.8
  • crates.io libwebp-sys: introduced 0, fixed 0.9.3
  • npm electron: introduced 22.0.0, fixed 22.3.24
  • npm electron: introduced 24.0.0, fixed 24.8.3
  • npm electron: introduced 25.0.0, fixed 25.8.1
  • npm electron: introduced 26.0.0, fixed 26.2.1
  • npm electron: introduced 27.0.0-beta.1, fixed 27.0.0-beta.2
  • NuGet SkiaSharp: introduced 2.0.0, fixed 2.88.6
  • Go github.com/chai2010/webp: introduced 1.1.2, fixed 1.4.0
  • PyPI pillow: introduced 0, fixed 10.0.1
  • crates.io webp: introduced 0, fixed 0.2.6
  • NuGet magick.net-q16-anycpu: introduced 0, fixed 13.3.0
  • NuGet magick.net-q16-hdri-anycpu: introduced 0, fixed 13.3.0
  • NuGet magick.net-q16-x64: introduced 0, fixed 13.3.0
  • NuGet magick.net-q8-anycpu: introduced 0, fixed 13.3.0
  • NuGet magick.net-q8-openmp-x64: introduced 0, fixed 13.3.0
  • NuGet magick.net-q8-x64: introduced 0, fixed 13.3.0
  • Go github.com/chai2010/webp: introduced 0, fixed 0.0.0-20250406010349-76805d5a8860
  • Go github.com/chai2010/webp: introduced 0.0.0, fixed 1.1.2-0.20250406010349-76805d5a8860

Read on 2026-11-03T01:53:55.999Z under licence ghsa-cc-by-4.0@9e5f1b3c from https://api.osv.dev/v1/vulns/GHSA-j7hp-h8jx-5ppr

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

CWE-787: Out-of-bounds Write

D3FEND ontology version 1.6.0.

Read on 2026-11-03T00:02:57.820Z under licence d3fend-terms-of-use@f98cbc7e from https://d3fend.mitre.org/api/weakness/cwe/CWE-787.json

MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
"The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/

Sources and licences

  • CISA

    Source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30, CC0 1.0. Use of this data does not imply endorsement by CISA or DHS.

    CC0 1.0 Universal

  • National Vulnerability Database (NIST)

    This product uses the NVD API but is not endorsed or certified by the NVD.

    NVD API Terms of Use (NIST publications in the public domain, 17 U.S.C. 105)

  • CVE Program, The MITRE Corporation

    Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation. CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

    CVE Program Terms of Use ("CVE Usage" licence)

  • GitHub Advisory Database

    Source: GitHub Advisory Database, https://github.com/advisories/GHSA-j7hp-h8jx-5ppr, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Changes: fields selected and reformatted by ransomware-tracker.com.

    CC BY 4.0

  • GitHub Advisory Database via OSV.dev

    GHSA-j7hp-h8jx-5ppr: GitHub Advisory Database, https://github.com/advisories/GHSA-j7hp-h8jx-5ppr. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/), provided as is, without warranties. Retrieved via OSV.dev (https://osv.dev/vulnerability/GHSA-j7hp-h8jx-5ppr), which enriches records; fields selected and reformatted by ransomware-tracker.com.

    CC BY 4.0

  • MITRE D3FEND

    MITRE D3FEND™ knowledge graph. © 2025 The MITRE Corporation.
    "The MITRE Corporation (MITRE) hereby grants you a non-exclusive, royalty-free license to use D3FEND for research, development, and commercial purposes. Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." Terms: https://d3fend.mitre.org/tou/

    MITRE D3FEND Terms of Use (site + knowledge graph); source repo MIT

Cite this page

Dragons Eye Ransomware Tracker, "CVE-2023-4863: Google Chromium WebP Heap-Based Buffer Overflow Vulnerability",
entity page, dataset version ref-bd1fe3866fd3, updated 2026-11-02T23:39:54.475Z,
https://ransomware-tracker.com/cve/CVE-2023-4863 (accessed 2026-11-03).
Underlying source: CISA Catalog of Known Exploited Vulnerabilities, version 2026.10.30.
Underlying source: National Vulnerability Database (NIST), CVE API 2.0, record last modified 2026-06-17T06:38:46.547.
Underlying source: CVE List (CVE Program, The MITRE Corporation), record updated 2025-10-21T23:05:38.429Z.
Underlying source: GitHub Advisory Database, GHSA-j7hp-h8jx-5ppr, updated 2025-07-09T15:52:20Z.
Underlying source: GitHub Advisory Database, GHSA-j7hp-h8jx-5ppr, via OSV.dev, modified 2026-09-10T03:50:01.877717636Z.
Underlying source: MITRE D3FEND, ontology version 1.6.0.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.

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