{"answers":{"affected":"It affects 22 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-22897 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2021-22897 is a medium-severity vulnerability in Haxx Curl, published on 11 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-22897 and fix it if it is affected.\n\nWhat it is: CVE-2021-22897 is a medium-severity vulnerability in Haxx Curl, published on 11 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-22897 exists.\n\nAffected product: Haxx Curl. 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-2021-22897/ (Markdown: https://insights.sbomify.com/CVE-2021-22897/index.md)","id":"CVE-2021-22897","markdown":"https://insights.sbomify.com/CVE-2021-22897/index.md","name":"CVE-2021-22897","record":{"aliases":["AZL-6358","CURL-CVE-2021-22897","ECHO-59c1-8ea7-4c79","GHSA-frcg-47mh-pj2g","JLSEC-2026-1333"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"curl library","requires_auth":"none","summary":"Concurrent transfers in curl using Schannel may share cipher settings, potentially weakening transport security and exposing data.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"curl","vendor":"haxx"},{"product":"cloud_backup","vendor":"netapp"},{"product":"h300e_firmware","vendor":"netapp"},{"product":"h300s_firmware","vendor":"netapp"},{"product":"h410s_firmware","vendor":"netapp"},{"product":"h500e_firmware","vendor":"netapp"},{"product":"h500s_firmware","vendor":"netapp"},{"product":"h700e_firmware","vendor":"netapp"},{"product":"h700s_firmware","vendor":"netapp"},{"product":"hci_compute_node_firmware","vendor":"netapp"},{"product":"solidfire\\,_enterprise_sds_\\\u0026_hci_storage_node","vendor":"netapp"},{"product":"solidfire_\\\u0026_hci_management_node","vendor":"netapp"},{"product":"solidfire_baseboard_management_controller_firmware","vendor":"netapp"},{"product":"communications_cloud_native_core_binding_support_function","vendor":"oracle"},{"product":"communications_cloud_native_core_network_function_cloud_native_environment","vendor":"oracle"},{"product":"communications_cloud_native_core_network_repository_function","vendor":"oracle"},{"product":"communications_cloud_native_core_network_slice_selection_function","vendor":"oracle"},{"product":"communications_cloud_native_core_service_communication_proxy","vendor":"oracle"},{"product":"essbase","vendor":"oracle"},{"product":"mysql_server","vendor":"oracle"},{"product":"sinec_infrastructure_network_services","vendor":"siemens"},{"product":"universal_forwarder","vendor":"splunk"}],"cvss":{"score":5.3,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-668","name":"Exposure of Resource to Wrong Sphere"},{"id":"CWE-840","name":null}],"description":"curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single \"static\" variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Information disclosure in https://github.com/curl/curl","id":"CVE-2021-22897","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"haxx:curl","products":["haxx:curl","netapp:cloud_backup","netapp:h300e_firmware","netapp:h300s_firmware","netapp:h410s_firmware","netapp:h500e_firmware","netapp:h500s_firmware","netapp:h700e_firmware","netapp:h700s_firmware","netapp:solidfire_\\\u0026_hci_management_node","netapp:solidfire_baseboard_management_controller_firmware","oracle:communications_cloud_native_core_binding_support_function","oracle:essbase","oracle:mysql_server","siemens:sinec_infrastructure_network_services","splunk:universal_forwarder"],"type":"information_disclosure","year":"2021"},"n_packages":0,"n_references":8,"next":{"headline":"Information disclosure in https://github.com/curl/curl","id":"CVE-2021-22898"},"packages":[],"prev":{"headline":"Missing authorization in Nextcloud Mail","id":"CVE-2021-22896"},"products":["https://github.com/curl/curl"],"published":"2021-06-11","related":[{"cvss_score":9.8,"headline":"Negotiate ambient user conn reuse","id":"CVE-2026-19931","kev_date_added":null,"published":"2026-09-06"},{"cvss_score":9.8,"headline":"HTTP/2 stream-dependency tree UAF","id":"CVE-2026-10536","kev_date_added":null,"published":"2026-07-03"},{"cvss_score":9.8,"headline":"cross-origin Digest auth state leak","id":"CVE-2026-11856","kev_date_added":null,"published":"2026-07-03"},{"cvss_score":9.8,"headline":"SASL double-free","id":"CVE-2026-8925","kev_date_added":null,"published":"2026-07-03"},{"cvss_score":9.8,"headline":"stale proxy password leak","id":"CVE-2026-9079","kev_date_added":null,"published":"2026-07-03"},{"cvss_score":9.8,"headline":"Code injection in curl","id":"CVE-2016-4606","kev_date_added":null,"published":"2020-02-21"},{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2016-9953","kev_date_added":null,"published":"2018-03-12"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["n/a"]},"summary":"Concurrent transfers in curl using Schannel may share cipher settings, potentially weakening transport security and exposing data.","url":"https://insights.sbomify.com/CVE-2021-22897/"}