CVE-2026-123201
5.3 MEDIUMpublic exploit availablePublished 2026-11-05 · Updated 2026-11-05
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
Buku (bukuserver) through 5.1.1 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server request internal hosts by supplying a url parameter to /api/fetch_data or /api/network_handle. Attackers can target loopback, private, or cloud metadata IP addresses, which pass the weak is_bad_url() check and follow redirects, to discover internal services and read their page titles, descriptions, and keywords.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-918
Public exploit & PoC references
- https://github.com/jarun/buku/blob/e232ac357cbba22fe69d6d6dfc0d35512a4cd313/buku.py#L4057-L4084
- https://github.com/jarun/buku/blob/e232ac357cbba22fe69d6d6dfc0d35512a4cd313/bukuserver/api.py#L97-L105
- https://github.com/jarun/buku/commit/13f6497afc974f02f1069b760772abe8815d1675
- https://github.com/jarun/buku/issues/910
- https://github.com/jarun/buku/pull/916
All references
- https://github.com/jarun/buku/blob/e232ac357cbba22fe69d6d6dfc0d35512a4cd313/buku.py#L4057-L4084
- https://github.com/jarun/buku/blob/e232ac357cbba22fe69d6d6dfc0d35512a4cd313/bukuserver/api.py#L97-L105
- https://github.com/jarun/buku/commit/13f6497afc974f02f1069b760772abe8815d1675
- https://github.com/jarun/buku/issues/910
- https://github.com/jarun/buku/pull/916
- https://www.vulncheck.com/advisories/buku-through-5.1.1-ssrf-via-bukuserver-fetch-data-and-network-handle-api
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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- HIGHCVE-2025-14260
- UNSCOREDCVE-2026-0311
- LOWCVE-2026-100104
- MEDIUMCVE-2026-100251
- MEDIUMCVE-2026-100257
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