Server-side Request Forgery (SSRF) Affecting bugsink package, versions [,2.1.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-BUGSINK-16624713
- published10 May 2026
- disclosed8 May 2026
- creditFushuling, RacerZ-fighting
Introduced: 8 May 2026
CVE-2026-44502 (opens in a new tab)How to fix?
Upgrade bugsink to version 2.1.3 or higher.
Overview
bugsink is a Self-hosted Error Tracking
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the validate_webhook_url process. An attacker can cause the application to send outbound HTTP POST requests to unintended hosts, including internal or non-allowlisted destinations, by supplying specially crafted webhook URLs that exploit discrepancies between URL parsing and HTTP client behavior. This can be achieved by manipulating malformed URLs with certain characters, leading to bypass of outbound-host validation logic.
Workaround
This vulnerability can be mitigated by restricting who can configure or modify webhook URLs, reviewing existing webhook configurations for malformed or unusual URLs, and enforcing tightly controlled outbound network policies at the deployment level.