{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-42346 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-42346 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-42346 is a medium-severity server-side request forgery vulnerability in gitroomhq postiz-app, published on 8 May 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-2026-42346 and fix it if it is affected.\n\nWhat it is: CVE-2026-42346 is a medium-severity server-side request forgery vulnerability in gitroomhq postiz-app, published on 8 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-42346 in the wild and no public exploit code.\n\nAffected product: gitroomhq postiz-app. 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-2026-42346/ (Markdown: https://insights.sbomify.com/CVE-2026-42346/index.md)","id":"CVE-2026-42346","markdown":"https://insights.sbomify.com/CVE-2026-42346/index.md","name":"CVE-2026-42346","record":{"aliases":["GHSA-f7jj-p389-4w45"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Social media scheduling tool","requires_auth":"none","summary":"Attackers can bypass SSRF protections via DNS rebinding to access internal network resources in Postiz.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Postiz is an AI social media scheduling tool. From version 2.16.6 to before version 2.21.7, all SSRF protections added in v2.21.4–v2.21.6 share a fundamental TOCTOU (Time-of-Check-Time-of-Use) vulnerability: isSafePublicHttpsUrl() resolves DNS to validate the target IP, but subsequent fetch() calls resolve DNS independently. An attacker controlling a DNS server can exploit this gap via DNS rebinding to redirect requests to internal network addresses. This issue has been patched in version 2.21.7.","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":"Postiz: TOCTOU DNS rebinding bypasses all SSRF URL validation paths","id":"CVE-2026-42346","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"ssrf","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"OpAMP client reads unbounded HTTP response bodies","id":"CVE-2026-42348"},"packages":[],"prev":{"headline":"Server-side request forgery in FastGPT","id":"CVE-2026-42345"},"products":["postiz-app"],"published":"2026-05-08","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-11","vendors":["gitroomhq"]},"summary":"Attackers can bypass SSRF protections via DNS rebinding to access internal network resources in Postiz.","url":"https://insights.sbomify.com/CVE-2026-42346/"}