{"answers":{"affected":"3 open source packages ship an affected version, including github.com/caddyserver/caddy/v2. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-28923 exists.","fix":"Upgrade github.com/caddyserver/caddy/v2 to 2.5.0-beta.1 or later.","what":"CVE-2022-28923 is a medium-severity vulnerability in n/a, published on 6 Feb 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2022-28923 and fix it if it is affected.\n\nWhat it is: CVE-2022-28923 is a medium-severity vulnerability in n/a, published on 6 Feb 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-28923 exists.\n\nAffected packages and fixed versions:\n- github.com/caddyserver/caddy/v2 (Go): affected all versions; fixed in 2.5.0-beta.1\n- github.com/caddyserver/caddy/v2 (Go): affected all versions; fixed in 2.5.0-beta.1\n- github.com/caddyserver/caddy/v2 (Go): affected all versions; fixed in 2.5.0-beta.1\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-2022-28923/ (Markdown: https://insights.sbomify.com/CVE-2022-28923/index.md)","id":"CVE-2022-28923","markdown":"https://insights.sbomify.com/CVE-2022-28923/index.md","name":"CVE-2022-28923","record":{"aliases":["DEBIAN-CVE-2022-28923","GHSA-qpm3-vr34-h8w8","GO-2023-1567"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Caddy web server","requires_auth":"none","summary":"Attackers can redirect users to phishing sites via crafted URLs in Caddy, requiring an upgrade to mitigate.","user_interaction":"required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"caddy","vendor":"caddyserver"}],"cvss":{"score":6.1,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"}],"description":"Caddy v2.4.6 was discovered to contain an open redirection vulnerability which allows attackers to redirect users to phishing websites via crafted URLs.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":1,"refs":[{"date":null,"kind":"nuclei","ref":"http/cves/2022/CVE-2022-28923.yaml","stars":null,"title":"Caddy 2.4.6 - Open Redirect"}],"tier":"weaponised"},"has_fix":true,"headline":"Open Redirect in Caddy","id":"CVE-2022-28923","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"open_redirect","year":"2022"},"n_packages":3,"n_references":1,"next":{"headline":"Information disclosure in n/a","id":"CVE-2022-28924"},"packages":[{"ecosystem":"Go","fixed":["2.5.0-beta.1"],"introduced":["0"],"last_affected":[],"package":"github.com/caddyserver/caddy/v2","purl":null,"source":"GHSA-qpm3-vr34-h8w8"},{"ecosystem":"Go","fixed":["2.5.0-beta.1"],"introduced":["0"],"last_affected":[],"package":"github.com/caddyserver/caddy/v2","purl":"pkg:golang/github.com/caddyserver/caddy/v2","source":"GHSA-qpm3-vr34-h8w8"},{"ecosystem":"Go","fixed":["2.5.0-beta.1"],"introduced":["0"],"last_affected":[],"package":"github.com/caddyserver/caddy/v2","purl":"pkg:golang/github.com/caddyserver/caddy/v2","source":"GO-2023-1567"}],"prev":{"headline":"Cross-site request forgery in n/a","id":"CVE-2022-28921"},"products":["n/a"],"published":"2023-02-06","related":[{"cvss_score":9.8,"headline":"Caddy vulnerable to Authentication Bypass due to mishandling of TLS client authentication","id":"CVE-2018-21246","kev_date_added":null,"published":"2020-06-15"},{"cvss_score":8.9,"headline":"Caddy: Unicode case-folding length expansion causes incorrect split_path index in FastCGI transport","id":"CVE-2026-27590","kev_date_added":null,"published":"2026-02-24"},{"cvss_score":8.8,"headline":"Caddy's mTLS client authentication silently fails open when CA certificate file is missing or malformed","id":"CVE-2026-27586","kev_date_added":null,"published":"2026-02-24"},{"cvss_score":8.1,"headline":"Caddy: Unsafe Unicode Handling in FastCGI splitPos Allows Execution of Non-PHP Files","id":"CVE-2026-45135","kev_date_added":null,"published":"2026-06-23"},{"cvss_score":8.1,"headline":"Caddy: FastCGI header normalization bypass in `forward_auth copy_headers`","id":"CVE-2026-52845","kev_date_added":null,"published":"2026-06-23"},{"cvss_score":8.1,"headline":"Caddy forward_auth copy_headers Does Not Strip Client-Supplied Headers, Allowing Identity Injection and Privilege Escalation","id":"CVE-2026-30851","kev_date_added":null,"published":"2026-03-07"},{"cvss_score":7.7,"headline":"Caddy: MatchPath %xx (escaped-path) branch skips case normalization, enabling path-based route/auth bypass","id":"CVE-2026-27587","kev_date_added":null,"published":"2026-02-24"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-03-26","vendors":["n/a"]},"summary":"Attackers can redirect users to phishing sites via crafted URLs in Caddy, requiring an upgrade to mitigate.","url":"https://insights.sbomify.com/CVE-2022-28923/"}