CVE-2026-123201
Last modified
CVE-2026-123201 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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..
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| jarun | buku | <= 5.1.1 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-123201?
How severe is CVE-2026-123201?
How do I fix CVE-2026-123201?
How Strix Helps
- One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-123197WPPConnect Server through 2.10.76 contains a missing authent…5.3
- CVE-2026-123198LMFDB before commit 01829bd contains a server-side template …9.8
- CVE-2026-123199eBook-speaker 6.1.0 through 6.2.0 contains a stack buffer ov…5.5
- CVE-2026-1232A medium-severity vulnerability has been identified in Beyon…6.8
- CVE-2026-12320Information disclosure in the Password Manager component. Th…4.3
- CVE-2026-123200VRPN through 07.36 contains an out-of-bounds stack write vul…7.5
- CVE-2026-123202libnxml before 0.18.6 contains a stack-based buffer overflow…7.5
- CVE-2026-123203NEURON (CoreNEURON) through 9.0.2 contains a stack buffer ov…6.1
- CVE-2026-123204Posta before v0.18.0 contains a server-side request forgery …4.3
- CVE-2026-123205accel-ppp before 1.15.0 contains a heap buffer overflow vuln…6.5
- CVE-2026-123206EdgeChat before 2.20.3 contains a missing authentication vul…3.7
- CVE-2026-123207LibreTV before v2.21.2 contains a server-side request forger…3.1
Are you affected by CVE-2026-123201?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST