A use-after-free vulnerability in WebCore::RenderLayer::addChild in WebKitGTK before…
Priority MEDIUM 42CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 4 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
A use-after-free vulnerability in WebCore::RenderLayer::addChild in WebKitGTK before 2.36.8 allows attackers to execute code remotely.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01062 64th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 4 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:* | before 2.36.8 | Vulnerable | WebKitGTK |
| cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* | 38 | Vulnerable | Fedoraproject |
- cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:* Versions before 2.36.8 Vulnerable ·WebKitGTK
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
Remediation
Red Hat 3 advisories
- RHSA-2025:10364 Released 2025-07-07 · Red Hat rating Importantwebkitgtk4 security update
- Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4-2.48.3-2.el7_9, webkitgtk4-devel-2.48.3-2.el7_9, webkitgtk4-jsc-2.48.3-2.el7_9 +1
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-devel-2.48.3-2.el7_9, webkitgtk4-doc-2.48.3-2.el7_9, webkitgtk4-jsc-devel-2.48.3-2.el7_9
- RHSA-2023:2834 Released 2023-05-16 · Red Hat rating Importantwebkit2gtk3 security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3-2.38.5-1.el8, webkit2gtk3-devel-2.38.5-1.el8, webkit2gtk3-jsc-2.38.5-1.el8 +1
- RHSA-2023:2256 Released 2023-05-09 · Red Hat rating Importantwebkit2gtk3 security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3-2.38.5-1.el9, webkit2gtk3-devel-2.38.5-1.el9, webkit2gtk3-jsc-2.38.5-1.el9 +1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2023:2834 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:2256 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2025:10364 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2025:10364 |
Timeline
- 2026-10-02 Threatist record created from CVE-2023-25358
- 2026-10-03 Alias added: GHSA-xcc8-3vrq-wjg2
References
Sources
- CVE-2023-25358 · CVE Program
- CVE-2023-25358 · NVD
- FIRST EPSS
- GHSA-xcc8-3vrq-wjg2 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-25358 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences