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Vulnerability details: VCID-4asg-vgfk-n7av
Vulnerability ID VCID-4asg-vgfk-n7av
Aliases CVE-2026-35342
GHSA-2cxp-xq3c-mjxx
Summary The mktemp utility in uutils coreutils fails to properly handle an empty TMPDIR environment variable. Unlike GNU mktemp, which falls back to /tmp when TMPDIR is an empty string, the uutils implementation treats the empty string as a valid path. This causes temporary files to be created in the current working directory (CWD) instead of the intended secure temporary directory. If the CWD is more permissive or accessible to other users than /tmp, it may lead to unintended information disclosure or unauthorized access to temporary data.
Status Published
Exploitability 0.5
Weighted Severity 3.0
Risk 1.5
Affected and Fixed Packages Package Details
Weaknesses (1)
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/uutils/coreutils
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/uutils/coreutils/commit/eb25ec328b226d8fbbaa4058bf9187165bf06d51
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/uutils/coreutils/pull/10566
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-22T18:15:42Z/ Found at https://github.com/uutils/coreutils/pull/10566
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Found at https://github.com/uutils/coreutils/releases/tag/0.6.0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-22T18:15:42Z/ Found at https://github.com/uutils/coreutils/releases/tag/0.6.0
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-35342
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Exploit Prediction Scoring System (EPSS)
Percentile 0.0437
EPSS Score 0.00017
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:45:00.198729+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/35xxx/CVE-2026-35342.json 38.6.0