CVE-2025-54433: Bugsink Path Traversal Vulnerability

Q: What is CVE-2025-54433?

CVE-2025-54433 is a security vulnerability in Bugsink involving Bugsink path traversal via event_id in ingestion under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').

Q: Which Bugsink versions are affected?

Affected versions include releases prior to 1.7.4, 1.6.4, 1.5.5, 1.4.3 across affected packages: bugsink.

Q: What version fixes CVE-2025-54433?

Upgrading to 1.7.4, 1.6.4, 1.5.5, 1.4.3 (or the latest patched release for your respective branch) resolves the vulnerability.

Q: Is bugsink affected?

Yes, bugsink is affected in releases prior to 1.7.4, 1.6.4, 1.5.5, 1.4.3. Upgrade your dependency to 1.7.4, 1.6.4, 1.5.5, 1.4.3 or later.

Q: What CWE is associated with CVE-2025-54433?

CVE-2025-54433 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).

Q: How can I check PyPI dependencies for CVE-2025-54433?

Run the dependency tree command: 'pip show bugsink'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

HIGH

Advisory Identifier: GHSA-q78p-g86f-jg6q

CWE-22

Published 2025-07-29

Advisory Summary

CVE-2025-54433 is a HIGH path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Bugsink libraries in the PyPI ecosystem. The issue involves bugsink path traversal via event_id in ingestion. Remediation is available by upgrading affected packages to version 1.7.4, 1.6.4, 1.5.5, 1.4.3.

CVE-2025-54433 at a Glance

CVE Identifier CVE-2025-54433

GHSA Identifier GHSA-q78p-g86f-jg6q

Severity HIGH

CVSS v3.1 Base Score N/A

CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Product Bugsink

Package Ecosystem PyPI

Published Date 2025-07-29

Last Updated 2025-07-30

How to Fix CVE-2025-54433

To remediate this vulnerability, upgrade all affected Bugsink dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

bugsink fixed: 1.7.4

pip install bugsink>=1.7.4

bugsink fixed: 1.6.4

pip install bugsink>=1.6.4

bugsink fixed: 1.5.5

pip install bugsink>=1.5.5

bugsink fixed: 1.4.3

pip install bugsink>=1.4.3

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

pip show bugsink

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-54433, inspect your installed packages using pip:

pip show bugsink

Analyze the terminal output to locate any version of Bugsink in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.7.4), your application is affected.

Note: The pip show bugsink command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Bugsink, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Summary In affected versions, ingestion paths construct file locations directly from untrusted `event_id` input without validation. A specially crafted `event_id` can result in paths outside the intended directory, potentially allowing file overwrite or creation in arbitrary locations. Submitting such input requires access to a valid DSN. While that limits exposure, DSNs are sometimes discoverable—for example, when included in frontend code—and should not be treated as a strong security boundary. ## Impact A valid DSN holder can craft an `event_id` that causes the ingestion process to write files outside its designated directory. This allows overwriting files accessible to the user running Bugsink. If Bugsink runs in a container, the effect is confined to the container’s filesystem. In non-containerized setups, the overwrite may affect other parts of the system accessible to that user. ## Mitigation Update to version `1.7.4`, `1.6.4`, `1.5.5` or `1.4.3` , which require `event_id` to be a valid UUID and normalizes it before use in file paths.

CVE-2025-54433 Affected Bugsink Versions

4 component(s)

Fixed Versions:

1.7.41.6.41.5.51.4.3

Product / Package	Ecosystem	Affected Versions	Fixed Version
bugsink pypi/bugsink	PyPI	≥ 1.7.0 < 1.7.4	1.7.4
bugsink pypi/bugsink	PyPI	≥ 1.6.0 < 1.6.4	1.6.4
bugsink pypi/bugsink	PyPI	≥ 1.5.0 < 1.5.5	1.5.5
bugsink pypi/bugsink	PyPI	< 1.4.3	1.4.3

References

GitHub Advisory / Wiki ADVISORY

https://github.com/bugsink/bugsink/security/advisories/GHSA-q78p-g86f-jg6q

NVD — CVE-2025-54433 NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-54433

Security Fix Commit FIX COMMIT

https://github.com/bugsink/bugsink/commit/1001726f4389e982c486cdd5fa81941cb46cfc33

Security Fix Commit FIX COMMIT

https://github.com/bugsink/bugsink/commit/211ddf76758c808c095b5f836c363f148d934d21

Security Fix Commit FIX COMMIT

https://github.com/bugsink/bugsink/commit/2c41fbe3881bdea83399a7f9fdc8cff198ae089f

Security Fix Commit FIX COMMIT

https://github.com/bugsink/bugsink/commit/53cf1a17a3e96f7c83c7451fd56f980a09d0c9b0

Security Fix Commit FIX COMMIT

https://github.com/bugsink/bugsink/commit/55a155003d0b416ea008c5e7dcde85130ad21d9b

Security Fix Commit FIX COMMIT

https://github.com/bugsink/bugsink/commit/b94aa8a5c96ce8cdd9711b6beb4e518264993ac2

Security Fix Commit FIX COMMIT

https://github.com/bugsink/bugsink/commit/c341687bd655543730c812db35c29199f788be6b

Security Fix Commit FIX COMMIT

https://github.com/bugsink/bugsink/commit/c87217bd565122ba70af90436e3ab2cd9bee658f

Bugsink Source Repository REPOSITORY

https://github.com/bugsink/bugsink

Frequently Asked Questions

What is CVE-2025-54433?

CVE-2025-54433 is a security vulnerability in Bugsink involving Bugsink path traversal via event_id in ingestion under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').

Which Bugsink versions are affected?

Affected versions include releases prior to 1.7.4, 1.6.4, 1.5.5, 1.4.3 across affected packages: bugsink.

What version fixes CVE-2025-54433?

Upgrading to 1.7.4, 1.6.4, 1.5.5, 1.4.3 (or the latest patched release for your respective branch) resolves the vulnerability.

Is bugsink affected?

Yes, bugsink is affected in releases prior to 1.7.4, 1.6.4, 1.5.5, 1.4.3. Upgrade your dependency to 1.7.4, 1.6.4, 1.5.5, 1.4.3 or later.

What CWE is associated with CVE-2025-54433?

CVE-2025-54433 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).

How can I check PyPI dependencies for CVE-2025-54433?

Run the dependency tree command: 'pip show bugsink'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-q78p-g86f-jg6q",
  "modified" : "2025-07-30T15:42:22Z",
  "published" : "2025-07-29T20:13:51Z",
  "aliases" : [ "CVE-2025-54433" ],
  "summary" : "Bugsink path traversal via event_id in ingestion",
  "details" : "## Summary\n\nIn affected versions, ingestion paths construct file locations directly from untrusted `event_id` input without validation. A specially crafted `event_id` can result in paths outside the intended directory, potentially allowing file overwrite or creation in arbitrary locations.\n\nSubmitting such input requires access to a valid DSN. While that limits exposure, DSNs are sometimes discoverable—for example, when included in frontend code—and should not be treated as a strong security boundary.\n\n## Impact\n\nA valid DSN holder can craft an `event_id` that causes the ingestion process to write files outside its designated directory. This allows overwriting files accessible to the user running Bugsink.\n\nIf Bugsink runs in a container, the effect is confined to the container’s filesystem. In non-containerized setups, the overwrite may affect other parts of the system accessible to that user.\n\n## Mitigation\n\nUpdate to version `1.7.4`, `1.6.4`, `1.5.5` or `1.4.3` , which require `event_id` to be a valid UUID and normalizes it before use in file paths.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "bugsink"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.7.0"
      }, {
        "fixed" : "1.7.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "bugsink"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.6.0"
      }, {
        "fixed" : "1.6.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "bugsink"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.5.0"
      }, {
        "fixed" : "1.5.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "bugsink"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.4.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/bugsink/bugsink/security/advisories/GHSA-q78p-g86f-jg6q"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-54433"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bugsink/bugsink/commit/1001726f4389e982c486cdd5fa81941cb46cfc33"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bugsink/bugsink/commit/211ddf76758c808c095b5f836c363f148d934d21"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bugsink/bugsink/commit/2c41fbe3881bdea83399a7f9fdc8cff198ae089f"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bugsink/bugsink/commit/53cf1a17a3e96f7c83c7451fd56f980a09d0c9b0"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bugsink/bugsink/commit/55a155003d0b416ea008c5e7dcde85130ad21d9b"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bugsink/bugsink/commit/b94aa8a5c96ce8cdd9711b6beb4e518264993ac2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bugsink/bugsink/commit/c341687bd655543730c812db35c29199f788be6b"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/bugsink/bugsink/commit/c87217bd565122ba70af90436e3ab2cd9bee658f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/bugsink/bugsink"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-07-29T20:13:51Z",
    "nvd_published_at" : "2025-07-30T15:15:35Z"
  }
}

CVSS V4

N/A HIGH

Attack Vector N/A

Attack Complexity N/A

Privileges Required N/A

User Interaction N/A

Scope N/A

Confidentiality N/A

Integrity N/A

Availability N/A

Vector String

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Advisory Metadata

Source ID: GHSA-q78p-g86f-jg6q
Schema Version: 1.4.0
Published: 2025-07-29 20:13
Last Modified: 2025-07-30 15:42
Database Record File: advisories/github-reviewed/2025/07/GHSA-q78p-g86f-jg6q/GHSA-q78p-g86f-jg6q.json