{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-88880 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-88880 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-88880 is a critical vulnerability in mend-renovate-ce, published on 10 Sep 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-2026-88880 and fix it if it is affected.\n\nWhat it is: CVE-2026-88880 is a critical vulnerability in mend-renovate-ce, published on 10 Sep 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-2026-88880 in the wild and no public exploit code.\n\nAffected product: mend-renovate-ce. 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-2026-88880/ (Markdown: https://insights.sbomify.com/CVE-2026-88880/index.md)","id":"CVE-2026-88880","markdown":"https://insights.sbomify.com/CVE-2026-88880/index.md","name":"CVE-2026-88880","record":{"aliases":["GHSA-9hmg-9h89-jhmx","GHSA-wqcg-39wp-gpqc"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Renovate dependency tool","requires_auth":"none","summary":"Attackers can exfiltrate authentication credentials by manipulating Link headers in GitLab pagination responses, affecting Renovate users.","user_interaction":"not_required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.2,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"}],"description":"Renovate before 44.11.3 fails to validate Link header destinations when following GitLab server pagination, allowing malicious servers to redirect credential-bearing requests. Attackers controlling a compromised GitLab server can specify a Link header pointing to attacker-controlled infrastructure to exfiltrate authentication credentials.","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":"Renovate before 44.11.3 Credential Exfiltration via Link Header","id":"CVE-2026-88880","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"open_redirect","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Renovate before 44.11.3 Credential Exfiltration via Link Header","id":"CVE-2026-88881"},"packages":[],"prev":{"headline":"Traefik before v2.11.56 Identity Spoofing via Header Alias","id":"CVE-2026-88879"},"products":["mend-renovate-ce","mend-renovate-enterprise-edition","renovate","renovate-ce","renovate-ee-server","renovate-ee-worker"],"published":"2026-09-10","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-29","vendors":["mend","renovatebot"]},"summary":"Attackers can exfiltrate authentication credentials by manipulating Link headers in GitLab pagination responses, affecting Renovate users.","url":"https://insights.sbomify.com/CVE-2026-88880/"}