{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-57448 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-57448 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-57448 is a medium-severity vulnerability in mrblomblo blombooru, published on 28 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-57448 and fix it if it is affected.\n\nWhat it is: CVE-2026-57448 is a medium-severity vulnerability in mrblomblo blombooru, published on 28 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-57448 in the wild and no public exploit code.\n\nAffected product: mrblomblo blombooru. 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-2026-57448/ (Markdown: https://insights.sbomify.com/CVE-2026-57448/index.md)","id":"CVE-2026-57448","markdown":"https://insights.sbomify.com/CVE-2026-57448/index.md","name":"CVE-2026-57448","record":{"aliases":["GHSA-5c5w-x8jp-fjqw"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":6.2,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Blombooru is a self-hosted personal booru for organizing and tagging private image collections. Prior to 1.40.0, the administrator-only `GET /proxy-image` endpoint, exposed as `/api/booru-import/proxy-image`, accepts a `url` query parameter and fetches it server-side without meaningful destination validation. `proxy_image()` in `backend/app/routes/booru_import.py` only checks whether the value starts with http, then uses `get_client_for_url` or `requests.get` and streams the response. Private, loopback and link-local addresses are not blocked, and automatically followed redirects can move a request from a trusted domain to an internal address. An authenticated administrator can enumerate internal services and access cloud instance metadata, potentially disclosing IAM credentials and crossing the application's intended cloud or network trust boundary. The reporter also observed a hanging recursive self-request. Administrator authentication remains a prerequisite; this is not an anonymous proxy. This issue is fixed in version 1.40.0.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Blombooru: administrator image-proxy server-side request forgery","id":"CVE-2026-57448","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Actual Sync Server: CORS Proxy GitHub API Allowlist Prefix Bypass Leaks Private Repositories Through the Server GitHub Token","id":"CVE-2026-57449"},"packages":[],"prev":{"headline":"Discourse Doc Categories: Doc category index refresh leaks private topic titles","id":"CVE-2026-57447"},"products":["blombooru"],"published":"2026-10-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-28","vendors":["mrblomblo"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-57448/"}