# RHSA-2026:3753: Security update for 3 packages

RHSA-2026:3753, released March 12, 2026, fixes 4 CVEs across 3 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-3753
- Platform: Linux
- Released: Mar 12, 2026
- Priority: High (Closes CVE-2025-61726, high severity)
- CVEs: 4, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:3753

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [osbuild-composer](https://patchblox.com/security/data/product/linux/osbuild-composer.md) | RHEL 9 | 0:149-4.el9_7 |
| [osbuild-composer-core](https://patchblox.com/security/data/product/linux/osbuild-composer-core.md) | RHEL 9 | 0:149-4.el9_7 |
| [osbuild-composer-worker](https://patchblox.com/security/data/product/linux/osbuild-composer-worker.md) | RHEL 9 | 0:149-4.el9_7 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-61726](https://patchblox.com/security/data/cve/CVE-2025-61726.md) | High | Memory exhaustion in query parameter parsing in net/url | 9.1 | 0.0229 |  |
| [CVE-2025-68121](https://patchblox.com/security/data/cve/CVE-2025-68121.md) | High | Unexpected session resumption in crypto/tls | 10.0 | 0.0090 |  |
| [CVE-2025-61728](https://patchblox.com/security/data/cve/CVE-2025-61728.md) | High | Excessive CPU consumption when building archive index in archive/zip | 9.1 | 0.0074 |  |
| [CVE-2025-61729](https://patchblox.com/security/data/cve/CVE-2025-61729.md) | High | Excessive resource consumption when printing error string for host certificate validation in crypto/x509 | 8.1 | 0.0049 |  |

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Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo