{"answers":{"affected":"4 open source packages ship an affected version, including simplesamlphp/simplesamlphp. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-49284 in the wild and no public exploit code.","fix":"Upgrade simplesamlphp/simplesamlphp to a fixed version for your release line: 2.4.7 or 2.5.2.","what":"CVE-2026-49284 is a high-severity authentication bypass vulnerability in simplesamlphp, published on 17 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-49284 and fix it if it is affected.\n\nWhat it is: CVE-2026-49284 is a high-severity authentication bypass vulnerability in simplesamlphp, published on 17 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-49284 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- simplesamlphp/simplesamlphp (Packagist): affected all versions; fixed in 2.4.7\n- simplesamlphp/simplesamlphp (Packagist): affected all versions; fixed in 2.4.7\n- simplesamlphp/simplesamlphp (Packagist): affected from 2.5.0; fixed in 2.5.2\n- simplesamlphp/simplesamlphp (Packagist): affected from 2.5.0; fixed in 2.5.2\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-2026-49284/ (Markdown: https://insights.sbomify.com/CVE-2026-49284/index.md)","id":"CVE-2026-49284","markdown":"https://insights.sbomify.com/CVE-2026-49284/index.md","name":"CVE-2026-49284","record":{"aliases":["DEBIAN-CVE-2026-49284","GHSA-q8r6-xj3f-wrrm","UBUNTU-CVE-2026-49284"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"SAML authentication library","requires_auth":"low_privilege","summary":"Attackers can bypass IdP selection controls in SimpleSAMLphp by exploiting SAML response validation flaws, potentially accessing unauthorized data.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"simplesamlphp","vendor":"simplesamlphp"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability. Prior to 2.4.7 and 2.5.2, SimpleSAMLphp's SAML SP ACS path does not enforce the IdP selected for an SP-initiated login when unsigned Response/InResponseTo is combined with a signed assertion lacking SubjectConfirmationData/InResponseTo, allowing a response issued by one trusted IdP to be bound to SP state created for another IdP and bypass flows that route users to a specific IdP, including deployments that set enable_unsolicited to false. This issue is fixed in versions 2.4.7 and 2.5.2.","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":"SimpleSAMLphp SP accepts a response from an unexpected IdP when unsigned `Response/InResponseTo` is combined with a signed assertion lacking `SubjectConfirmationData/InResponseTo`","id":"CVE-2026-49284","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":4,"n_references":3,"next":{"headline":"PhpWeasyPrint vulnerable to PHAR deserialization via output filename (CVE-2023-28115 case-insensitive bypass)","id":"CVE-2026-49286"},"packages":[{"ecosystem":"Packagist","fixed":["2.4.7"],"introduced":["0"],"last_affected":[],"package":"simplesamlphp/simplesamlphp","purl":null,"source":"GHSA-q8r6-xj3f-wrrm"},{"ecosystem":"Packagist","fixed":["2.4.7"],"introduced":["0"],"last_affected":[],"package":"simplesamlphp/simplesamlphp","purl":"pkg:composer/simplesamlphp/simplesamlphp","source":"GHSA-q8r6-xj3f-wrrm"},{"ecosystem":"Packagist","fixed":["2.5.2"],"introduced":["2.5.0"],"last_affected":[],"package":"simplesamlphp/simplesamlphp","purl":null,"source":"GHSA-q8r6-xj3f-wrrm"},{"ecosystem":"Packagist","fixed":["2.5.2"],"introduced":["2.5.0"],"last_affected":[],"package":"simplesamlphp/simplesamlphp","purl":"pkg:composer/simplesamlphp/simplesamlphp","source":"GHSA-q8r6-xj3f-wrrm"}],"prev":{"headline":"SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass","id":"CVE-2026-49283"},"products":["simplesamlphp"],"published":"2026-07-17","related":[{"cvss_score":9.8,"headline":"SimpleSAMLphp Session fixation issue and authentication bypass in the authcrypt module","id":"CVE-2017-12868","kev_date_added":null,"published":"2017-09-01"},{"cvss_score":7.5,"headline":"SimpleSAMLphp Improper Verification of Cryptographic Signature","id":"CVE-2018-7644","kev_date_added":null,"published":"2018-03-05"},{"cvss_score":6.1,"headline":"SimpleSAMLphp Open redirection protection bypass","id":"CVE-2018-6520","kev_date_added":null,"published":"2018-02-02"},{"cvss_score":5.9,"headline":"SimpleSAMLphp Unauthenticated encryption in CBC mode","id":"CVE-2017-12870","kev_date_added":null,"published":"2017-09-01"},{"cvss_score":5.9,"headline":"SimpleSAMLphp Incorrect IV generation for encryption","id":"CVE-2017-12871","kev_date_added":null,"published":"2017-09-01"},{"cvss_score":5.9,"headline":"SimpleSAMLphp Invalid token creation and validation","id":"CVE-2017-12867","kev_date_added":null,"published":"2017-08-29"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-20","vendors":["simplesamlphp"]},"summary":"Attackers can bypass IdP selection controls in SimpleSAMLphp by exploiting SAML response validation flaws, potentially accessing unauthorized data.","url":"https://insights.sbomify.com/CVE-2026-49284/"}