CVE-2025-54433
Bugsink path traversal via event_id in ingestion
Impact
## 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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | bugsink | >= 1.7.0, < 1.7.4 | 1.7.4 |
Affected products
| Product | Affected versions |
|---|---|
| Versions 1.4.2 And Below, 1.5.0 | through 1.5.4 |
| 1.6.0 | through 1.6.3 |
| And 1.7.0 | through 1.7.3 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/bugsink/bugsink/commit/1001726f4389e982c486cdd5fa81941cb46cfc33
- https://github.com/bugsink/bugsink/commit/211ddf76758c808c095b5f836c363f148d934d21
- https://github.com/bugsink/bugsink/commit/2c41fbe3881bdea83399a7f9fdc8cff198ae089f
- https://github.com/bugsink/bugsink/commit/53cf1a17a3e96f7c83c7451fd56f980a09d0c9b0
- https://github.com/bugsink/bugsink/commit/55a155003d0b416ea008c5e7dcde85130ad21d9b
- https://github.com/bugsink/bugsink/commit/b94aa8a5c96ce8cdd9711b6beb4e518264993ac2
- https://github.com/bugsink/bugsink/commit/c341687bd655543730c812db35c29199f788be6b
- https://github.com/bugsink/bugsink/commit/c87217bd565122ba70af90436e3ab2cd9bee658f
- https://github.com/bugsink/bugsink/security/advisories/GHSA-q78p-g86f-jg6q
- https://github.com/advisories/GHSA-q78p-g86f-jg6q
- https://nvd.nist.gov/vuln/detail/CVE-2025-54433