CVE-2026-83596— Webkitgtk: validate the full featurelist array once in opentypeverticaldata findfeature
Quick assessment
Affected
Red Hat Red Hat Enterprise Linux 6
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
WebKitGTK 中发现了一个缺陷。在解析恶意网页内容时，由于内存处理不当，可能导致内存损坏。
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I. Basic Information for CVE-2026-83596
Vulnerability Information
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Vulnerability Title
Webkitgtk: validate the full featurelist array once in opentypeverticaldata findfeature
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in WebKitGTK. Processing malicious web content can cause memory corruption due to improper memory handling.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
II. Public POCs for CVE-2026-83596
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-83596 (1)
Vendor Advisories for CVE-2026-83596 (1)
-
🔗 2526490 – (CVE-2026-83596) CVE-2026-83596 webkitgtk: Validate the full FeatureList array once in OpenTypeVerticalData findFeature issue-tracking x_refsource_REDHAT
Other References for CVE-2026-83596 (1)
Same Patch Batch · Red Hat · 2026-08-31 · 6 CVEs total
| CVE-2026-12894 | 8.8 HIGH | Quarkus-qute: io.quarkus.qute.reflectionvalueresolver: quarkus:server-side template inject |
| CVE-2026-13732 | 7.8 HIGH | Gdb: gdb: out-of-bounds write in stabs parser read_member_functions() via crafted elf |
| CVE-2026-17615 | 7.5 HIGH | Resteasy-core: resteasy sourceprovider remote unauthenticated file read |
| CVE-2026-76763 | 7.5 HIGH | Io.smallrye/smallrye-graphql: smallrye graphql: unauthenticated denial of service via larg |
| CVE-2026-81624 | 7.5 HIGH | Undertow-core: undertow: websocketcontainer defaults for buffers and timeouts are infinite |
IV. Related Vulnerabilities
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Same weakness: CWE-120
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V. Comments for CVE-2026-83596
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