# CVE-2026-62268: borgbackup: borgbackup is an opensource, deduplicating archiver with compression and authenticated encryption

CVE-2026-62268 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-62268, released August 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-62268
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 5, 2026

## Description

borgbackup is an opensource, deduplicating archiver with compression and authenticated encryption. Prior to 1.4.5 and 2.0.0b22, extracting a malicious archive can follow a symlinked parent path or resolve embedded dot-dot path components and delete or overwrite files outside the extraction directory. A crafted slave hardlink can also use an attacker-controlled hardlink source outside the extraction directory and hard-link that file into the restored tree, disclosing its contents. Creating the malicious archive requires repository access and, for encrypted or authenticated repositories, the Borg key and passphrase; a victim must then extract the archive. This issue is fixed in versions 1.4.5 and 2.0.0b22.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | borgbackup Debian 14 | 1.4.5-1 | [DEBIAN-CVE-2026-62268](https://patchblox.com/security/data/fix/linux/debian-cve-2026-62268.md) | Aug 2, 2026 |
| Linux | borgbackup2 Debian 14 | 2.0.0b22-1 | [DEBIAN-CVE-2026-62268](https://patchblox.com/security/data/fix/linux/debian-cve-2026-62268.md) | Aug 2, 2026 |

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Data as of 2026-11-09T13:31:49Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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