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CVE-2026-47215— Singularity: Incorrect path matching for 'limit container paths' directive

Quick assessment

Affected
sylabs singularity
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.

SingularityCE 和 SingularityPRO 是开源的容器平台。在 SingularityCE 4.4.2 以及 SingularityPRO 4.3.9 和 4.1.14 之前，singularity.conf 中 指令对路径字符串的匹配存在缺陷。在 setuid 模式下，如果管理员允许访问 /data/safe 路径，则允许位于同级目录（如 /data/safe-but-unsafe）中的容器被运行。这使得用户能够从管理员配置的路径白名单之外的位置运行容器。未使用 功能的部署不受此问题影响。该问

CVSS 4.8 · Medium EPSS 0.15% · P4

Affected Version Matrix 3

VendorProduct Version RangeStatus
sylabs singularity < 4.4.2 affected
sylabs SingularityPRO < 4.1.14 affected
>= 4.2.0, < 4.3.9 affected
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I. Basic Information for CVE-2026-47215

Vulnerability Information
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Vulnerability Title
Singularity: Incorrect path matching for 'limit container paths' directive
Source: CVE Program / CVE List V5
Vulnerability Description
SingularityCE and SingularityPRO are open source container platforms. Prior to SingularityCE 4.4.2 and SingularityPRO 4.3.9 and 4.1.14, incorrect path-string matching in the singularity.conf limit container paths directive allows a container in a sibling directory such as /data/safe-but-unsafe to be run when /data/safe is allowed under setuid mode. This permits a user to run a container from outside the administrator's configured path allowlist. Installations that do not use limit container paths are not affected. This issue is fixed in SingularityCE 4.4.2 and SingularityPRO 4.3.9 and 4.1.14.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
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
sylabs singularity < 4.4.2 -
sylabs SingularityPRO < 4.1.14 -

II. Public POCs for CVE-2026-47215

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III. Intelligence Information for CVE-2026-47215

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Patches & Fixes for CVE-2026-47215 (3)

Vendor Advisories for CVE-2026-47215 (1)

Vendor Pages for CVE-2026-47215 (1)

IV. Related Vulnerabilities

Same product: singularity
Same vendor: sylabs
Same weakness: CWE-22

V. Comments for CVE-2026-47215

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