{"answers":{"affected":"2 open source packages ship an affected version, including com.atlassian.connect:atlassian-connect-spring-boot-starter. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-26074 in the wild and no public exploit code.","fix":"Upgrade com.atlassian.connect:atlassian-connect-spring-boot-starter to 2.1.3 or later.","what":"CVE-2021-26074 is a medium-severity authentication bypass vulnerability in Atlassian Connect Spring Boot (ACSB), published on 16 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-26074 and fix it if it is affected.\n\nWhat it is: CVE-2021-26074 is a medium-severity authentication bypass vulnerability in Atlassian Connect Spring Boot (ACSB), published on 16 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-26074 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- com.atlassian.connect:atlassian-connect-spring-boot-starter (Maven): affected from 1.1.0; fixed in 2.1.3\n- com.atlassian.connect:atlassian-connect-spring-boot-starter (Maven): affected from 1.1.0; fixed in 2.1.3\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-2021-26074/ (Markdown: https://insights.sbomify.com/CVE-2021-26074/index.md)","id":"CVE-2021-26074","markdown":"https://insights.sbomify.com/CVE-2021-26074/index.md","name":"CVE-2021-26074","record":{"aliases":["GHSA-cpcr-74q9-74gp"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Atlassian Connect Spring Boot","requires_auth":"low_privilege","summary":"Attackers can bypass authentication in lifecycle endpoints by sending context JWTs, allowing unauthorized re-installation events in Atlassian Connect apps.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"atlassian","cpe":[{"product":"connect_spring_boot","vendor":"atlassian"}],"cvss":{"score":6.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"Broken Authentication in Atlassian Connect Spring Boot (ACSB) from version 1.1.0 before version 2.1.3: Atlassian Connect Spring Boot is a Java Spring Boot package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Spring Boot app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Spring Boot versions from version 1.1.0 before version 2.1.3 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app.","ecosystems":["Maven"],"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":"Broken Authentication in Atlassian Connect Spring Boot","id":"CVE-2021-26074","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"Information disclosure in Jira Data Center","id":"CVE-2021-26075"},"packages":[{"ecosystem":"Maven","fixed":["2.1.3"],"introduced":["1.1.0"],"last_affected":[],"package":"com.atlassian.connect:atlassian-connect-spring-boot-starter","purl":null,"source":"GHSA-cpcr-74q9-74gp"},{"ecosystem":"Maven","fixed":["2.1.3"],"introduced":["1.1.0"],"last_affected":[],"package":"com.atlassian.connect:atlassian-connect-spring-boot-starter","purl":"pkg:maven/com.atlassian.connect/atlassian-connect-spring-boot-starter","source":"GHSA-cpcr-74q9-74gp"}],"prev":{"headline":"Broken Authentication in Atlassian Connect Express","id":"CVE-2021-26073"},"products":["Atlassian Connect Spring Boot (ACSB)"],"published":"2021-04-16","related":[{"cvss_score":9.1,"headline":"Improper Authentication in Atlassian Connect Spring Boot","id":"CVE-2021-26077","kev_date_added":null,"published":"2021-05-09"}],"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":"2025-02-12","vendors":["Atlassian"]},"summary":"Attackers can bypass authentication in lifecycle endpoints by sending context JWTs, allowing unauthorized re-installation events in Atlassian Connect apps.","url":"https://insights.sbomify.com/CVE-2021-26074/"}