# RHSA-2026:10702: Security update for 4 packages

RHSA-2026:10702, released April 30, 2026, fixes 18 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-10702
- Platform: Linux
- Released: Apr 30, 2026
- Priority: High (Closes CVE-2025-43214, high severity)
- CVEs: 18, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:10702

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [webkit2gtk3](https://patchblox.com/security/data/product/linux/webkit2gtk3.md) | RHEL 8 | 0:2.52.3-1.el8_10 |
| [webkit2gtk3-devel](https://patchblox.com/security/data/product/linux/webkit2gtk3-devel.md) | RHEL 8 | 0:2.52.3-1.el8_10 |
| [webkit2gtk3-jsc](https://patchblox.com/security/data/product/linux/webkit2gtk3-jsc.md) | RHEL 8 | 0:2.52.3-1.el8_10 |
| [webkit2gtk3-jsc-devel](https://patchblox.com/security/data/product/linux/webkit2gtk3-jsc-devel.md) | RHEL 8 | 0:2.52.3-1.el8_10 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-43214](https://patchblox.com/security/data/cve/CVE-2025-43214.md) | High | WebKit: Processing maliciously crafted web content may lead to an unexpected Safari crash | 8.8 | 0.0109 |  |
| [CVE-2025-43213](https://patchblox.com/security/data/cve/CVE-2025-43213.md) | High | libjavascriptcoregtk-bin: The issue was addressed with improved memory handling | 8.8 | 0.0078 |  |
| [CVE-2026-20664](https://patchblox.com/security/data/cve/CVE-2026-20664.md) | High | WebKit: Processing maliciously crafted web content may lead to an unexpected process crash | 8.8 | 0.0075 |  |
| [CVE-2026-20652](https://patchblox.com/security/data/cve/CVE-2026-20652.md) | High | WebKit: A remote attacker may be able to cause a denial-of-service | 8.8 | 0.0070 |  |
| [CVE-2026-28857](https://patchblox.com/security/data/cve/CVE-2026-28857.md) | High | webkit2gtk3: WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.  Security Fix(es):  * webkitgt... | 8.8 | 0.0067 |  |
| [CVE-2026-28859](https://patchblox.com/security/data/cve/CVE-2026-28859.md) | High | WebKit: A malicious website may be able to process restricted web content outside the sandbox | 8.8 | 0.0066 |  |
| [CVE-2026-20665](https://patchblox.com/security/data/cve/CVE-2026-20665.md) | High | WebKit: Processing maliciously crafted web content may prevent Content Security Policy from being enforced | 8.8 | 0.0063 |  |
| [CVE-2025-43457](https://patchblox.com/security/data/cve/CVE-2025-43457.md) | High | gir1.2-javascriptcoregtk-6.0: A use-after-free issue was addressed with improved memory management | 8.8 | 0.0061 |  |
| [CVE-2025-43511](https://patchblox.com/security/data/cve/CVE-2025-43511.md) | High | WebKit Web Inspector: Processing maliciously crafted web content may lead to an unexpected process crash | 8.8 | 0.0046 |  |
| [CVE-2026-20636](https://patchblox.com/security/data/cve/CVE-2026-20636.md) | High | gir1.2-javascriptcoregtk-4.1: The issue was addressed with improved memory handling | 8.8 | 0.0046 |  |
| [CVE-2026-20643](https://patchblox.com/security/data/cve/CVE-2026-20643.md) | High | WebKit: Processing maliciously crafted web content may bypass Same Origin Policy | 8.8 | 0.0037 |  |
| [CVE-2026-20635](https://patchblox.com/security/data/cve/CVE-2026-20635.md) | High | gir1.2-javascriptcoregtk-4.1: The issue was addressed with improved memory handling | 8.8 | 0.0035 |  |
| [CVE-2026-20644](https://patchblox.com/security/data/cve/CVE-2026-20644.md) | High | WebKit: Processing maliciously crafted web content may lead to an unexpected process crash | 8.8 | 0.0035 |  |
| [CVE-2025-46299](https://patchblox.com/security/data/cve/CVE-2025-46299.md) | High | WebKit: Processing maliciously crafted web content may disclose internal states of the app | 8.8 | 0.0031 |  |
| [CVE-2026-20691](https://patchblox.com/security/data/cve/CVE-2026-20691.md) | High | WebKit Sandboxing: A maliciously crafted webpage may be able to fingerprint the user | 8.8 | 0.0029 |  |
| [CVE-2026-28871](https://patchblox.com/security/data/cve/CVE-2026-28871.md) | High | WebKit: Visiting a maliciously crafted website may lead to a cross-site scripting attack | 8.8 | 0.0029 |  |
| [CVE-2026-20608](https://patchblox.com/security/data/cve/CVE-2026-20608.md) | High | WebKit: Processing maliciously crafted web content may lead to an unexpected process crash | 8.8 | 0.0028 |  |
| [CVE-2026-20676](https://patchblox.com/security/data/cve/CVE-2026-20676.md) | High | WebKit: A website may be able to track users through Safari web extensions | 8.8 | 0.0027 |  |

---

Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo