CVE-2026-124029: Kopia through 0.23.1 contains a path traversal vulnerability in copyDirectoryContent that allows users with re

Q: How do I fix CVE-2026-124029?

kopia: upgrade to newer than 0.23.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-124029 being exploited?

CVE-2026-124029 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-124029 affect?

CVE-2026-124029 affects kopia. Severity is medium (CVSS 5.7). Kopia through 0.23.1 contains a path traversal vulnerability in copyDirectoryContent that allows users with repository write access to escape the restore directory via crafted entry names. Attackers can create snapshots whose directory mani

Q: How urgent is CVE-2026-124029?

Priority 20/100. No elevated risk signals yet.

Routine

MEDIUM 5.7UPGRADE

CVE-2026-124029 is a medium-severity flaw (CVSS 5.7) affecting kopia. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Kopia through 0.23.1 contains a path traversal vulnerability in copyDirectoryContent that allows users with repository write access to escape the restore directory via crafted entry names. Attackers can create snapshots whose directory manifest entries are named '..', so victims restoring with default options write attacker-chosen content outside the restore directory.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.7 (Medium)
EPSS exploit chance	n/a
CISA exploited list	No
Weakness	CWE-22
Published	2026-11-06
Last modified	2026-11-06

Publisher (CNA): VulnCheck · Vendor: kopia · Source: CVE Program record (NVD analysis pending)

Last updated 2026-11-06 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-11-06 19:14 UTCPublished CVE record published
2026-11-06 19:14 UTCUpdated Record last modified

kopia kopia UPGRADE

Affected: <= 0.23.1

Fixed in: newer than 0.23.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy kopia || rpm -q kopia || kopia --version

2. UPGRADE to newer than 0.23.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kopia

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kopia

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-124029?

kopia: upgrade to newer than 0.23.1. Exact commands for each OS are on this page.

Is CVE-2026-124029 being exploited?

CVE-2026-124029 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-124029 affect?

CVE-2026-124029 affects kopia. Severity is medium (CVSS 5.7). Kopia through 0.23.1 contains a path traversal vulnerability in copyDirectoryContent that allows users with repository write access to escape the restore directory via crafted entry names. Attackers can create snapshots whose directory mani

How urgent is CVE-2026-124029?

Priority 20/100. No elevated risk signals yet.

References

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