Budibase: SSRF via trivial `.tar.gz` substring bypass in Plugin URL upload (`/api/plugin`)
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Budibase | budibase | affected |
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Github GHSA |
GHSA-xh5j-727m-w6gg | Budibase vulnerable to SSRF via trivial `.tar.gz` substring bypass in Plugin URL upload (`/api/plugin`) |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.263% probability within 30 days)
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ssvc
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| First Time appeared |
Budibase
Budibase budibase |
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| Vendors & Products |
Budibase
Budibase budibase |
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| Description | Budibase is an open-source low-code platform. Prior to 3.35.10, the Plugin URL upload endpoint (POST /api/plugin) validates the submitted URL with a single substring check: url.includes(".tar.gz"). Any URL containing .tar.gz anywhere in the string — in the path, query string, or fragment — passes this check. The URL then proceeds directly to fetchWithBlacklist() with no further validation of host, scheme, or path. Standalone, this vulnerability is blocked by Budibase's default SSRF blacklist, which covers private IP ranges. But the URL validation layer itself is broken regardless, and it directly enables SSRF in two realistic situations: (1) when chained with the BLACKLIST_IPS bypass ([001]), where the blacklist is empty; and (2) when the plugin server follows HTTP redirects from an external URL to an internal target (the default node-fetch behavior with redirect: 'follow'). This vulnerability is fixed in 3.35.10. | |
| Title | Budibase: SSRF via trivial `.tar.gz` substring bypass in Plugin URL upload (`/api/plugin`) | |
| Weaknesses | CWE-918 | |
| References |
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| Metrics |
cvssV3_1
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