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CVE-2026-124029— Kopia through 0.23.1 Path Traversal in Snapshot Restore via Directory Entry Names

Quick assessment

Affected
kopia kopia
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kopia 在 0.23.1 及更早版本中存在一个路径遍历漏洞，该漏洞位于 函数中。拥有仓库写入权限的用户可通过构造恶意条目名称，突破还原目录的限制。攻击者可创建包含目录清单条目名为 的快照，导致受害者在默认选项下执行还原操作时，将攻击者指定的内容写入到还原目录之外。

CVSS 5.7 · Medium

Possible ATT&CK Techniques 1 AI

T1201 · Password Policy Discovery

Affected Version Matrix 1

VendorProduct Version RangeStatus
kopia kopia ≤ 0.23.1 affected
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I. Basic Information for CVE-2026-124029

Vulnerability Information
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Vulnerability Title
Kopia through 0.23.1 Path Traversal in Snapshot Restore via Directory Entry Names
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
kopia kopia 0 ~ 0.23.1 -

II. Public POCs for CVE-2026-124029

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-124029

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Other References for CVE-2026-124029 (4)

IV. Related Vulnerabilities

Same product: kopia
Same vendor: kopia
Same weakness: CWE-22