CVE-2026-54546: CloudTAK: Authenticated full-read SSRF in CloudTAK basemap import (PUT /api/basemap), no IP-classification guard
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-04 15:41 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
CloudTAK is a browser-based Common Operating Picture and situational awareness tool compatible with TAK. Prior to 13.22.1, the authenticated PUT /api/basemap endpoint passes an attacker-controlled URL through importBasemapURL() in api/routes/basemap.ts to fetch(url) without resolved-address classification or redirect revalidation. BasemapProtocol.isValidURL in api/lib/interface-basemap.ts checks only the HTTP or HTTPS scheme and is not applied on the vulnerable import path. Direct internal addresses, alternate IP encodings, and redirects to internal addresses can reach cloud metadata, loopback, private, and CGNAT HTTP services. The OptionalTileJSON response reflects fields including name, attribution, and tiles[0] to the caller, making the request forgery full-read rather than blind and enabling cloud credential theft and internal service disclosure. This issue is fixed in version 13.22.1.
Description quoted from the CVE record (assigned by GitHub_M, published 2026-09-17).
Weakness: CWE-918: Server-Side Request Forgery (SSRF)
How it can be exploited
Exploitable over the network with low attack complexity needing low privileges and no user interaction. Impact: confidentiality low, integrity none, availability none. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CISA assessment (SSVC): CISA assesses that a public proof of concept exists. Automatable: no. Technical impact: partial.
Public exploit evidence (Exploit Observer)
Exploit Observer found 3 code repositories naming this CVE.
Code repositories that name a CVE are often scanners, copies or fakes, and some are malware. Read the code before running anything.
See all 8 references on Exploit Observer
Live scores
- EPSS
- 0.004
low predicted chance of attack - VEDAS
- 0.987
strong exploit evidence - On CISA KEV
- Not listed
- Detection rule
- Suricata
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| dfpc-coe CloudTAK | version < 13.22.1 | Not stated |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
How to fix it
No fixed version or vendor advisory is listed in the CVE record yet. Watch the vendor’s security page.
How to detect it
Suricata rules (network detection)
1 rule that alert on traffic matching this exploit: VEDAS CVE-2026-54546 CloudTAK SSRF via Basemap Import URL. Add them to your Suricata rule set and reload.
Show the rules
alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-54546 CloudTAK SSRF via Basemap Import URL"; flow:established,to_server; http.method; content:"PUT"; http.uri; content:"/api/basemap"; nocase; fast_pattern; http.request_body; content:"url"; nocase; pcre:"/\x22url\x22\s*:\s*\x22[a-z0-9+.-]+:\x2f\x2f/i"; classtype:web-application-attack; reference:cve,CVE-2026-54546; reference:url,https://www.exploit.observer/?keyword=CVE-2026-54546&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=cloudtak&match=exact; sid:1096400; rev:1;)
CVE-2026-54546.rules on GitHub
References
Other references
- https://github.com/dfpc-coe/CloudTAK/security/advisories/GHSA-vqrw-qphh-p34v (x_refsource_CONFIRM)
- https://github.com/dfpc-coe/CloudTAK/pull/1513 (x_refsource_MISC)
- https://github.com/dfpc-coe/CloudTAK/commit/1e0f6e65977c86fbc0aa15e308c43cbcaee23a7c (x_refsource_MISC)
- https://github.com/dfpc-coe/CloudTAK/commit/556b35632877802c7e9c818db44aef7a2c3abebf (x_refsource_MISC)
- https://github.com/dfpc-coe/CloudTAK/releases/tag/v13.22.1 (x_refsource_MISC)
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.
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