CVE-2026-35373— uutils coreutils ln Local Denial of Service via Improper Handling of Non-UTF-8 Filenames
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I. Basic Information for CVE-2026-35373
Vulnerability Information
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Vulnerability Title
uutils coreutils ln Local Denial of Service via Improper Handling of Non-UTF-8 Filenames
Source: NVD (National Vulnerability Database)
Vulnerability Description
A logic error in the ln utility of uutils coreutils causes the program to reject source paths containing non-UTF-8 filename bytes when using target-directory forms (e.g., ln SOURCE... DIRECTORY). While GNU ln treats filenames as raw bytes and creates the links correctly, the uutils implementation enforces UTF-8 encoding, resulting in a failure to stat the file and a non-zero exit code. In environments where automated scripts or system tasks process valid but non-UTF-8 filenames common on Unix filesystems, this divergence causes the utility to fail, leading to a local denial of service for those specific operations.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
Unicode编码处理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
uutils coreutils 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
uutils coreutils是Uutils开源的一个跨平台核心命令行工具集。 uutils coreutils存在安全漏洞，该漏洞源于ln逻辑错误，可能导致处理非UTF-8文件名时失败，造成本地拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-35373
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Same Patch Batch · Uutils · 2026-04-22 · 44 CVEs total
| CVE-2026-35338 | 7.3 HIGH | uutils coreutils chmod Path Traversal Bypass of --preserve-root |
| CVE-2026-35368 | 7.2 HIGH | uutils coreutils chroot Local Privilege Escalation and chroot Escape in via Name Service S |
| CVE-2026-35341 | 7.1 HIGH | uutils coreutils mkfifo Unauthorized Permission Change on Existing Files |
| CVE-2026-35352 | 7.0 HIGH | uutils coreutils mkfifo Privilege Escalation via TOCTOU Race Condition |
| CVE-2026-35349 | 6.7 MEDIUM | uutils coreutils Path-Based Safety Bypass with --preserve-root |
| CVE-2026-35350 | 6.6 MEDIUM | uutils coreutils cp Unexpected Privileged Executable Creation with -p |
| CVE-2026-35365 | 6.6 MEDIUM | uutils coreutils mv Denial of Service and Data Duplication via Improper Symlink Expansion |
| CVE-2026-35360 | 6.3 MEDIUM | uutils coreutils touch Arbitrary File Truncation via TOCTOU Race Condition |
| CVE-2026-35374 | 6.3 MEDIUM | uutils coreutils split Arbitrary File Truncation via Time-of-Check to Time-of-Use (TOCTOU) |
| CVE-2026-35364 | 6.3 MEDIUM | uutils coreutils mv Arbitrary File Overwrite via Cross-Device TOCTOU Race Condition |
| CVE-2026-35356 | 6.3 MEDIUM | uutils coreutils install Arbitrary File Overwrite with -D via Path Component Symlink Race |
| CVE-2026-35355 | 6.3 MEDIUM | uutils coreutils install Arbitrary File Overwrite via Symlink TOCTOU Race |
| CVE-2026-35363 | 5.6 MEDIUM | uutils coreutils rm Safeguard Bypass via Improper Path Normalization |
| CVE-2026-35369 | 5.5 MEDIUM | uutils coreutils kill System-wide Process Termination and Denial of Service via Argument M |
| CVE-2026-35339 | 5.5 MEDIUM | uutils coreutils chmod False Success Exit Code in Recursive Mode |
| CVE-2026-35340 | 5.5 MEDIUM | uutils coreutils chown and chgrp False Success Exit Code in Recursive Mode |
| CVE-2026-35348 | 5.5 MEDIUM | uutils coreutils sort Local Denial of Service via Forced UTF-8 Parsing |
| CVE-2026-35380 | 5.5 MEDIUM | uutils coreutils cut Local Logic Error and Data Integrity Issue in Delimiter Parsing |
| CVE-2026-35345 | 5.3 MEDIUM | uutils coreutils tail Privileged Information Disclosure via Symlink Replacement Race |
| CVE-2026-35372 | 5.0 MEDIUM | uutils coreutils ln Security Bypass via Improper Handling of the --no-dereference Flag |
Showing top 20 of 44 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: coreutils
- CVE-2026-35381
uutils coreutils cut Local Logic Error and Data Integrity Is - CVE-2026-35380
uutils coreutils cut Local Logic Error and Data Integrity Is - CVE-2026-35379
uutils coreutils tr Local Logic Error and Data Integrity Iss - CVE-2026-35378
uutils coreutils expr Local Denial of Service via Eager Eval - CVE-2026-35377
uutils coreutils env Local Denial of Service via Improper Ha
Same vendor: Uutils
- CVE-2026-35381
uutils coreutils cut Local Logic Error and Data Integrity Is - CVE-2026-35380
uutils coreutils cut Local Logic Error and Data Integrity Is - CVE-2026-35379
uutils coreutils tr Local Logic Error and Data Integrity Iss - CVE-2026-35378
uutils coreutils expr Local Denial of Service via Eager Eval - CVE-2026-35377
uutils coreutils env Local Denial of Service via Improper Ha
Same weakness: CWE-176
- CVE-2026-7040
Text::Minify::XS versions from 0.3.0 before 0.7.8 for Perl h - CVE-2026-35375
uutils coreutils split Local Data Integrity Issue via Lossy - CVE-2026-35346
uutils coreutils comm Silent Data Corruption via Lossy UTF-8 - CVE-2026-20202
Improper Input Validation during User Account Creation in Sp - CVE-2026-4116
SonicWALL SMA1000 安全漏洞
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