{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32255 exists.","fix":"No fix has been published for CVE-2026-32255 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-32255 is a high-severity server-side request forgery vulnerability in kanbn kan, published on 18 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-32255 and fix it if it is affected.\n\nWhat it is: CVE-2026-32255 is a high-severity server-side request forgery vulnerability in kanbn kan, published on 18 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32255 exists.\n\nAffected product: kanbn kan. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-32255/ (Markdown: https://insights.sbomify.com/CVE-2026-32255/index.md)","id":"CVE-2026-32255","markdown":"https://insights.sbomify.com/CVE-2026-32255/index.md","name":"CVE-2026-32255","record":{"aliases":[],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Kan project management","requires_auth":"none","summary":"Unauthenticated attackers can exploit an SSRF vulnerability in Kan to access internal services and cloud metadata via the attachment download endpoint.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"kan","vendor":"kan"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Kan is an open-source project management tool. In versions 0.5.4 and below, the /api/download/attatchment endpoint has no authentication and no URL validation. The Attachment Download endpoint accepts a user-supplied URL query parameter and passes it directly to fetch() server-side, and returns the full response body. An unauthenticated attacker can use this to make HTTP requests from the server to internal services, cloud metadata endpoints, or private network resources. This issue has been fixed in version 0.5.5. To workaround this issue, block or restrict access to /api/download/attatchment at the reverse proxy level (nginx, Cloudflare, etc.).","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-03-19","github_poc":1,"max_poc_stars":2,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-03-19T06:55:12Z","kind":"github_poc","ref":"https://github.com/kOaDT/poc-cve-2026-32255","stars":2,"title":"This repository contains a proof of concept (POC) for CVE-2026-32255, a high-severity Server-Side Request Forgery (SSRF) vulnerability in Kan, an open-source project management tool."},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-32255.yaml","stars":null,"title":"Kan \u003c= 0.5.4 - Server-Side Request Forgery"}],"tier":"weaponised"},"has_fix":false,"headline":"Kan is Vulnerable to Unauthenticated SSRF via Attachment Download Endpoint","id":"CVE-2026-32255","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"music-metadata has an infinite loop vulnerability in ASF parser","id":"CVE-2026-32256"},"packages":[],"prev":{"headline":"Kube-router Proxy Module Blindly Trusts ExternalIPs/LoadBalancer IPs Enabling Cluster-Wide Traffic Hijacking and DNS DoS","id":"CVE-2026-32254"},"products":["kan"],"published":"2026-03-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-19","vendors":["kanbn"]},"summary":"Unauthenticated attackers can exploit an SSRF vulnerability in Kan to access internal services and cloud metadata via the attachment download endpoint.","url":"https://insights.sbomify.com/CVE-2026-32255/"}