{"answers":{"affected":"2 open source packages ship an affected version, including guzzlehttp/psr7. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-49214 in the wild and no public exploit code.","fix":"Upgrade guzzlehttp/psr7 to 2.10.2 or later.","what":"CVE-2026-49214 is a medium-severity vulnerability in guzzle psr7, published on 11 Jun 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-2026-49214 and fix it if it is affected.\n\nWhat it is: CVE-2026-49214 is a medium-severity vulnerability in guzzle psr7, published on 11 Jun 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-2026-49214 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- guzzlehttp/psr7 (Packagist): affected all versions; fixed in 2.10.2\n- guzzlehttp/psr7 (Packagist): affected all versions; fixed in 2.10.2\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-2026-49214/ (Markdown: https://insights.sbomify.com/CVE-2026-49214/index.md)","id":"CVE-2026-49214","markdown":"https://insights.sbomify.com/CVE-2026-49214/index.md","name":"CVE-2026-49214","record":{"aliases":["DEBIAN-CVE-2026-49214","GHSA-hq7v-mx3g-29hw","MINI-424x-vr43-gvh4","MINI-53pq-9qjr-j72w","MINI-57q4-hv64-56x6","MINI-g63v-2842-42cf","MINI-j2jx-66j5-mx4m","MINI-pv3c-8472-v5xw","MINI-w7mr-mjch-gr54","UBUNTU-CVE-2026-49214"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"PHP HTTP library","requires_auth":"none","summary":"Attackers can inject headers via CRLF in URI hosts, enabling request smuggling or cache poisoning in applications using guzzlehttp/psr7.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"psr-7","vendor":"guzzlephp"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-93","name":"Improper Neutralization of CRLF Sequences"},{"id":"CWE-20","name":"Improper Input Validation"},{"id":"CWE-113","name":"Improper Neutralization of CRLF Sequences in HTTP Headers"}],"description":"guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Versions prior to 2.10.2 did not reject ASCII control characters, whitespace, or DEL in first-party URI host components. A vulnerable flow is: First, an application accepts a user-controlled URL. Second, the URL is used to construct a PSR-7 `Uri` or `Request`. Third, the host component contains CRLF or another header-unsafe character. Fourth, the host is copied into the PSR-7 `Host` header when no explicit `Host` header is provided. Finally, the request is serialized or sent by an HTTP client that does not independently reject the malformed host. In that flow, an attacker can cause the serialized request to contain additional attacker-controlled header lines. For example, a host containing `\"\\r\\nX-Injected: yes\"` can cause the generated `Host` header to span multiple HTTP header lines. Applications are affected when they use user-controlled URLs for outbound HTTP requests, URL forwarding, proxying, crawling, webhook delivery, or similar request-dispatch flows. In deployments involving HTTP/1.1 connection reuse, proxies, gateways, or load balancers, this malformed request may also contribute to request smuggling or cache poisoning, depending on how downstream components parse the request. The issue is patched in `2.10.2` and later. `1.x` is end-of-life and will not receive a patch. As a workaround, validate and reject all untrusted URI strings before constructing PSR-7 `Uri` or `Request` instances. Reject input containing ASCII control characters, whitespace, or DEL, including CRLF, tab, space, NUL, or DEL characters. Applications that forward requests should also ensure the final HTTP client or serializer rejects invalid URI and header data before writing requests to the network.","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/psr7 has CRLF Injection via URI Host Component","id":"CVE-2026-49214","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"other","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"Symfony UX: CSRF Protection Bypass in symfony/ux-live-component — Accept Header is CORS-Safelisted","id":"CVE-2026-49215"},"packages":[{"ecosystem":"Packagist","fixed":["2.10.2"],"introduced":["0"],"last_affected":[],"package":"guzzlehttp/psr7","purl":null,"source":"GHSA-hq7v-mx3g-29hw"},{"ecosystem":"Packagist","fixed":["2.10.2"],"introduced":["0"],"last_affected":[],"package":"guzzlehttp/psr7","purl":"pkg:composer/guzzlehttp/psr7","source":"GHSA-hq7v-mx3g-29hw"}],"prev":{"headline":"TypeBot: SSRF protection bypass via IPv6 unspecified address in Typebot HTTP request execution","id":"CVE-2026-49213"},"products":["psr7"],"published":"2026-06-11","related":[{"cvss_score":5.3,"headline":"guzzlehttp/psr7 has Host Confusion via Authority Reinterpretation","id":"CVE-2026-48998","kev_date_added":null,"published":"2026-06-11"},{"cvss_score":4.8,"headline":"guzzlehttp/psr7: CRLF Injection in HTTP Start-Line Serialization","id":"CVE-2026-55766","kev_date_added":null,"published":"2026-06-23"},{"cvss_score":4.2,"headline":"guzzlehttp/psr7: Host Confusion via Weak URI Host Validation","id":"CVE-2026-59882","kev_date_added":null,"published":"2026-07-08"}],"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":"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)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-11","vendors":["guzzle"]},"summary":"Attackers can inject headers via CRLF in URI hosts, enabling request smuggling or cache poisoning in applications using guzzlehttp/psr7.","url":"https://insights.sbomify.com/CVE-2026-49214/"}