CVE-2026-44502

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Source
https://cve.org/CVERecord?id=CVE-2026-44502
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44502.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-44502
Aliases
Published
2026-05-26T16:13:32Z
Modified
2026-10-21T02:57:59Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Bugsink: SSRF bypass in `validate_webhook_url`
Details

Bugsink is a self-hosted error tracking tool. Prior to 2.1.3, Bugsink’s webhook URL validation could be (partially) bypassed because of a mismatch in URL parsing. The original validation logic parsed webhook URLs with Python’s urllib.parse.urlparse, then sent the request with requests.post. For malformed inputs involving backslashes and @, those components can disagree about where the authority ends and which hostname is the real target. A URL may therefore appear to target an allowlisted public hostname during validation, while the HTTP client actually connects to a different host. This vulnerability is fixed in 2.1.3.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-918"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44502.json"
}
References

Affected packages

Git / github.com/bugsink/bugsink

Affected ranges

Type
GIT
Repo
https://github.com/bugsink/bugsink
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
940d2df635e06803ef658666d734306942db5cc7
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.1.3"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "940d2df635e06803ef658666d734306942db5cc7"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "2.1.3",
            "range":  [
                {
                    "fixed":  "940d2df635e06803ef658666d734306942db5cc7"
                }
            ],
            "source":  "REFERENCES_TAG"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.1.3"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

0.*
0.1.0
0.1.1
0.1.10
0.1.11
0.1.12
0.1.13
0.1.14
0.1.15
0.1.16
0.1.17
0.1.18
0.1.19
0.1.2
0.1.20
0.1.3
0.1.4
0.1.5
0.1.6
0.1.7
0.1.8
0.1.9
1.*
1.0.0
1.0.1
1.1.0
1.1.1
1.1.2
1.2.0
1.3.0
1.4.0
1.4.1
1.4.2
1.5.0
1.5.1
1.5.2
1.5.3
1.5.4
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.7.2
1.7.3
1.7.5
1.7.6
2.*
2.0.0
2.0.0a1
2.0.1
2.0.10
2.0.11
2.0.12
2.0.13
2.0.14
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.9
2.1.0
2.1.1
2.1.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44502.json"