# CVE-2025-54433: PYSEC-2026-1226 - Bugsink path traversal via event_id in ingestion

Source: https://junglewise.ai/threats/cve-2025-54433-bugsink-path-traversal-via-event-id-in-ingestion  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-07  
License: CC BY 4.0 with a link back

CVE-2025-54433 · Severity: medium · CVSS 4 · Published 2026-07-07

Bugsink path traversal via event_id in ingestion

Technologies: [bugsink (PyPI)](https://junglewise.ai/threats/technologies/pypi-bugsink). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2025-54433 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-54433 being exploited in the wild.

**How severe is CVE-2025-54433?** Medium severity, with a CVSS score of 4, published 7 July 2026.

**Which products and versions are affected?** bugsink (PyPI) ECOSYSTEM:introduced=0,fixed=1.4.3,introduced=1.5.0,fixed=1.5.5,introduced=1.6.0,fixed=1.6.4,introduced=1.7.0,fixed=1.7.4,introduced=1.6.0,fixed=1.6.4, ECOSYSTEM:introduced=1.7.0,fixed=1.7.4.

**Is there a fix for CVE-2025-54433?** Yes. bugsink (PyPI): upgrade to 1.6.4, 1.7.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-54433?** Check whether you run bugsink (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- bugsink (PyPI): upgrade to 1.6.4, 1.7.4 or later

  ```sh
  pip install "bugsink>=1.7.4"
  ```


## Affected products

- bugsink (PyPI) ECOSYSTEM:introduced=0,fixed=1.4.3,introduced=1.5.0,fixed=1.5.5,introduced=1.6.0,fixed=1.6.4,introduced=1.7.0,fixed=1.7.4,introduced=1.6.0,fixed=1.6.4, ECOSYSTEM:introduced=1.7.0,fixed=1.7.4

## Identifiers

- CVE-2025-54433
- GHSA-q78p-g86f-jg6q
- PYSEC-2026-1226

## Related threats

- [Bugsink denial of service via excessive event tags](https://junglewise.ai/threats/cve-2026-53954-bugsink-denial-of-service-via-excessive-event-tags)
- [PYSEC-2026-1227 - Bugsink is vulnerable to unauthenticated remote DoS via crafted Brotli input (via CPU)](https://junglewise.ai/threats/cve-2025-64509-bugsink-is-vulnerable-to-unauthenticated-remote-dos-via-crafted)
- [PYSEC-2026-1225 - Bugsink is vulnerable to unauthenticated remote DoS via crafted Brotli input](https://junglewise.ai/threats/cve-2025-64508-bugsink-is-vulnerable-to-unauthenticated-remote-dos-via-crafted)
- [Bugsink missing project scoping in sourcemap and debug file lookup](https://junglewise.ai/threats/cve-2026-47728-bugsink-missing-project-scoping-in-sourcemap-and-debug-file)
- [Bugsink authorization bypass in issue list bulk actions](https://junglewise.ai/threats/cve-2026-47716-bugsink-authorization-bypass-in-issue-list-bulk-actions)