{"answers":{"affected":"2 open source packages ship an affected version, including guzzlehttp/guzzle.","exploited":"There is no known exploitation of CVE-2026-67353 in the wild and no public exploit code.","fix":"Upgrade guzzlehttp/guzzle to 7.15.1 or later.","what":"CVE-2026-67353 is a medium-severity denial of service vulnerability in guzzle, published on 1 Aug 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-2026-67353 and fix it if it is affected.\n\nWhat it is: CVE-2026-67353 is a medium-severity denial of service vulnerability in guzzle, published on 1 Aug 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-2026-67353 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- guzzlehttp/guzzle (Packagist): affected all versions; fixed in 7.15.1\n- guzzlehttp/guzzle (Packagist): affected all versions; fixed in 7.15.1\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-2026-67353/ (Markdown: https://insights.sbomify.com/CVE-2026-67353/index.md)","id":"CVE-2026-67353","markdown":"https://insights.sbomify.com/CVE-2026-67353/index.md","name":"CVE-2026-67353","record":{"aliases":["DEBIAN-CVE-2026-67353","GHSA-f283-ghqc-fg79","MINI-4h5h-q37h-35xq","MINI-5qpw-wwq4-2c3r","MINI-9qx5-g6r9-p6h7","MINI-g9hf-3cwc-qq4c","MINI-mv7g-m99f-rvr6","MINI-rgwv-9ffh-prff","MINI-vm4m-j5j2-rrrv","MINI-vrpv-xwf9-32vq","UBUNTU-CVE-2026-67353"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"PHP HTTP client library","requires_auth":"none","summary":"Attackers can cause memory exhaustion and service disruption in applications using Guzzle by sending excessive cookies from malicious servers.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"guzzlehttp/guzzle versions before 7.15.1 contain a denial of service vulnerability in the CookieJar that accepts unlimited Set-Cookie header fields with no size restrictions. Attackers can return many large cookies from a malicious server, causing Guzzle to store excessive data in memory and generate oversized Cookie headers that fail in handlers or destination servers.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"guzzlehttp/guzzle before 7.15.1 Unbounded Cookie Denial of Service","id":"CVE-2026-67353","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"guzzlehttp/guzzle before 7.15.1 URI Fragment Disclosure via Referer","id":"CVE-2026-67354"},"packages":[{"ecosystem":"Packagist","fixed":["7.15.1"],"introduced":["0"],"last_affected":[],"package":"guzzlehttp/guzzle","purl":null,"source":"GHSA-f283-ghqc-fg79"},{"ecosystem":"Packagist","fixed":["7.15.1"],"introduced":["0"],"last_affected":[],"package":"guzzlehttp/guzzle","purl":"pkg:composer/guzzlehttp/guzzle","source":"GHSA-f283-ghqc-fg79"}],"prev":{"headline":"luci-app-https-dns-proxy Stored XSS via resolver_url","id":"CVE-2026-67352"},"products":["guzzle"],"published":"2026-08-01","related":[],"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":"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":"2026-10-08","vendors":["guzzle"]},"summary":"Attackers can cause memory exhaustion and service disruption in applications using Guzzle by sending excessive cookies from malicious servers.","url":"https://insights.sbomify.com/CVE-2026-67353/"}