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Red Hat · Security advisory · October 19, 2026
Red Hat · Security advisory · October 19, 2026RHSA-2026:84584: Security update for 4 packages
RHSA-2026:84584, released October 19, 2026, fixes 11 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
11
4 rated Critical
Exploited
0
None reported
Highest CVSS
9.6
Base score, 0 to 10
Highest EPSS
0.0055
46th percentile
Priority of the 11 CVEs
Patch now 0
Urgent 4
High 7
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| webkit2gtk3 | RHEL 8 | 0:2.54.1-1.el8_10 |
| webkit2gtk3-devel | RHEL 8 | 0:2.54.1-1.el8_10 |
| webkit2gtk3-jsc | RHEL 8 | 0:2.54.1-1.el8_10 |
| webkit2gtk3-jsc-devel | RHEL 8 | 0:2.54.1-1.el8_10 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-87512 | Chromium CVE-2026-87512: Use after free in ANGLE | 9.6 | 0.0055 | None reported |
| Urgent | CVE-2026-87654 | Chromium CVE-2026-87654: Buffer overflow in ANGLE | 9.6 | 0.0040 | None reported |
| Urgent | CVE-2026-87500 | Chromium CVE-2026-87500: Improper validation of array index in ANGLE | 9.6 | 0.0036 | None reported |
| Urgent | CVE-2026-87621 | Chromium CVE-2026-87621: Out of bounds write in ANGLE | 9.6 | 0.0036 | None reported |
| High | CVE-2026-91738 | Chromium CVE-2026-91738: Improper input validation | 9.6 | 0.0033 | None reported |
| High | CVE-2026-87604 | Chromium CVE-2026-87604: Out of bounds read in ANGLE | 9.6 | 0.0032 | None reported |
| High | CVE-2026-87648 | Chromium CVE-2026-87648: Use after free in ANGLE | 9.6 | 0.0031 | None reported |
| High | CVE-2026-91720 | Chromium CVE-2026-91720: Uninitialized resource | 9.6 | 0.0027 | None reported |
| High | CVE-2026-87586 | Chromium CVE-2026-87586: Out of bounds read in ANGLE | 9.6 | 0.0025 | None reported |
| High | CVE-2026-87596 | Chromium CVE-2026-87596: Out of bounds read in ANGLE | 9.6 | 0.0025 | None reported |
| High | CVE-2026-87602 | Chromium CVE-2026-87602: Out of bounds read in ANGLE | 9.6 | 0.0016 | None reported |
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