Vulnerability-Lookup

GHSA-FHR3-XH3Q-69W6

Vulnerability from github – Published: 2026-04-22 18:31 – Updated: 2026-04-22 18:31

Details

A logic error in the tr utility of uutils coreutils causes the program to incorrectly define the [:graph:] and [:print:] character classes. The implementation mistakenly includes the ASCII space character (0x20) in the [:graph:] class and excludes it from the [:print:] class, effectively reversing the standard behavior established by POSIX and GNU coreutils. This vulnerability leads to unintended data modification or loss when the utility is used in automated scripts or data-cleaning pipelines that rely on standard character class semantics. For example, a command executed to delete all graphical characters while intending to preserve whitespace will incorrectly delete all ASCII spaces, potentially resulting in data corruption or logic failures in downstream processing.

Severity ?

3.3 (Low)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-35379"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-684"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T17:16:42Z",
    "severity": "LOW"
  },
  "details": "A logic error in the tr utility of uutils coreutils causes the program to incorrectly define the [:graph:] and [:print:] character classes. The implementation mistakenly includes the ASCII space character (0x20) in the [:graph:] class and excludes it from the [:print:] class, effectively reversing the standard behavior established by POSIX and GNU coreutils. This vulnerability leads to unintended data modification or loss when the utility is used in automated scripts or data-cleaning pipelines that rely on standard character class semantics. For example, a command executed to delete all graphical characters while intending to preserve whitespace will incorrectly delete all ASCII spaces, potentially resulting in data corruption or logic failures in downstream processing.",
  "id": "GHSA-fhr3-xh3q-69w6",
  "modified": "2026-04-22T18:31:46Z",
  "published": "2026-04-22T18:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35379"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/pull/11405"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/releases/tag/0.8.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-35379 (GCVE-0-2026-35379)

Vulnerability from cvelistv5 – Published: 2026-04-22 16:09 – Updated: 2026-04-22 16:59

Title

uutils coreutils tr Local Logic Error and Data Integrity Issue in Character Class Handling

Summary

Severity ?

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-684 - Incorrect Provision of Specified Functionality

Assigner

canonical

References

URL

Tags

	https://github.com/uutils/coreutils/pull/11405	issue-trackingpatch
	https://github.com/uutils/coreutils/releases/tag/0.8.0	vendor-advisory

Impacted products

	Vendor	Product	Version
	Uutils	coreutils	Affected: 0 , < 0.8.0 (semver)

Credits

Zellic

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-35379",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-22T16:58:58.741199Z",
                "version": "2.0.3"
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/uutils",
          "defaultStatus": "unaffected",
          "packageName": "coreutils",
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            "Linux",
            "Unix",
            "macOS"
          ],
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      "credits": [
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        }
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      "impacts": [
        {
          "capecId": "CAPEC-153",
          "descriptions": [
            {
              "lang": "en",
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      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
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      ],
      "source": {
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      "title": "uutils coreutils tr Local Logic Error and Data Integrity Issue in Character Class Handling"
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    "dateReserved": "2026-04-02T12:58:56.089Z",
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-FHR3-XH3Q-69W6

CVE-2026-35379 (GCVE-0-2026-35379)

Tags

Sightings

Nomenclature