Common Weakness Enumeration

CWE-253

Allowed

Incorrect Check of Function Return Value

Abstraction: Base · Status: Incomplete

The product incorrectly checks a return value from a function, which prevents it from detecting errors or exceptional conditions.

42 vulnerabilities reference this CWE, most recent first.

GHSA-VP6Q-MV9J-J428

Vulnerability from github – Published: 2026-04-22 18:31 – Updated: 2026-07-06 19:27
VLAI
Summary
Duplicate Advisory: uutils coreutils incorrectly handles exit codes when processing multiple files
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-4x34-chg5-mwjj. This link is maintained to preserve external references.

Original Description

The recursive mode (-R) of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files. The final return value is determined solely by the success or failure of the last file processed. This allows the command to return an exit code of 0 (success) even if errors were encountered on previous files, such as 'Operation not permitted'. Scripts relying on these exit codes may proceed under a false sense of success while sensitive files remain with restrictive or incorrect permissions.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "coreutils"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-253"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-29T22:50:01Z",
    "nvd_published_at": "2026-04-22T17:16:35Z",
    "severity": "MODERATE"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-4x34-chg5-mwjj. This link is maintained to preserve external references.\n\n### Original Description\nThe recursive mode (-R) of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files. The final return value is determined solely by the success or failure of the last file processed. This allows the command to return an exit code of 0 (success) even if errors were encountered on previous files, such as \u0027Operation not permitted\u0027. Scripts relying on these exit codes may proceed under a false sense of success while sensitive files remain with restrictive or incorrect permissions.",
  "id": "GHSA-vp6q-mv9j-j428",
  "modified": "2026-07-06T19:27:28Z",
  "published": "2026-04-22T18:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35339"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/pull/9793"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/commit/abd581f62e97d0b147306ac40eac13af71c6fbba"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/uutils/coreutils"
    },
    {
      "type": "WEB",
      "url": "https://github.com/uutils/coreutils/releases/tag/0.6.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Duplicate Advisory: uutils coreutils incorrectly handles exit codes when processing multiple files",
  "withdrawn": "2026-07-06T19:27:28Z"
}

GHSA-WQ52-W6CX-5MG2

Vulnerability from github – Published: 2026-05-14 03:32 – Updated: 2026-05-14 06:31
VLAI
Details

Yubico webauthn-server-core (aka java-webauthn-server) 2.8.0 before 2.8.2 incorrectly checks a function's return value in the second factor flow, leading to impersonation.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-46419"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-253"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-14T02:17:21Z",
    "severity": "HIGH"
  },
  "details": "Yubico webauthn-server-core (aka java-webauthn-server) 2.8.0 before 2.8.2 incorrectly checks a function\u0027s return value in the second factor flow, leading to impersonation.",
  "id": "GHSA-wq52-w6cx-5mg2",
  "modified": "2026-05-14T06:31:32Z",
  "published": "2026-05-14T03:32:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46419"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Yubico/java-webauthn-server/releases/tag/2.8.2"
    },
    {
      "type": "WEB",
      "url": "https://www.yubico.com/support/security-advisories/ysa-2026-02"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation
Architecture and Design

Strategy: Language Selection

Use a language or compiler that uses exceptions and requires the catching of those exceptions.

Mitigation
Implementation

Properly check all functions which return a value.

Mitigation
Implementation

When designing any function make sure you return a value or throw an exception in case of an error.

No CAPEC attack patterns related to this CWE.