# ELSA-2026-69277: Security update for 3 packages

ELSA-2026-69277, released September 23, 2026, fixes 1 CVE across 3 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/elsa-2026-69277
- Platform: Linux
- Released: Sep 23, 2026
- Priority: High (Closes CVE-2026-81665, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://linux.oracle.com/errata/ELSA-2026-69277.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [corosync](https://patchblox.com/security/data/product/linux/corosync.md) | ol 8 | 0:3.1.8-1.el8_10.2 |
| [corosync-vqsim](https://patchblox.com/security/data/product/linux/corosync-vqsim.md) | ol 8 | 0:3.1.8-1.el8_10.2 |
| [corosynclib](https://patchblox.com/security/data/product/linux/corosynclib.md) | ol 8 | 0:3.1.8-1.el8_10.2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-81665](https://patchblox.com/security/data/cve/CVE-2026-81665.md) | High | corosync: A heap-based buffer overflow was found in Corosync's Totem Process Group (totempg) message reassembly | 7.5 | 0.0042 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo