{"answers":{"affected":"It affects 12 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-22898 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2021-22898 is a low-severity vulnerability in Debian Debian Linux, published on 11 Jun 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-22898 and fix it if it is affected.\n\nWhat it is: CVE-2021-22898 is a low-severity vulnerability in Debian Debian Linux, published on 11 Jun 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-22898 exists.\n\nAffected product: Debian Debian Linux. 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-2021-22898/ (Markdown: https://insights.sbomify.com/CVE-2021-22898/index.md)","id":"CVE-2021-22898","markdown":"https://insights.sbomify.com/CVE-2021-22898/index.md","name":"CVE-2021-22898","record":{"aliases":["ALPINE-CVE-2021-22898","AZL-6359","CLEANSTART-2026-QK91479","CLSA-2021-1632261872","CLSA-2021-1635459182","CURL-CVE-2021-22898","DEBIAN-CVE-2021-22898","GHSA-7w8r-q58w-5wcr","JLSEC-2026-1334","MGASA-2021-0243","SUSE-SU-2021:14735-1","SUSE-SU-2021:14760-1","SUSE-SU-2021:1762-1","SUSE-SU-2021:1763-1","UBUNTU-CVE-2021-22898","openSUSE-SU-2021:0808-1","openSUSE-SU-2021:1762-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"curl library","requires_auth":"none","summary":"An attacker can read sensitive internal memory data from a client using curl's telnet option due to uninitialized stack buffer exposure.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"curl","vendor":"haxx"},{"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":3.1,"severity":"low","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-909","name":"Missing Initialization of Resource"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.","ecosystems":["SUSE:Linux Enterprise Micro 5.0","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Basesystem 15 SP3","SUSE:Linux Enterprise Point of Sale 11 SP3","SUSE:Linux Enterprise Server 11 SP4-LTSS","SUSE:Linux Enterprise Server 11-SECURITY","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:Linux Enterprise Software Development Kit 12 SP5","openSUSE:Leap 15.2","openSUSE:Leap 15.3"],"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-2021-22898","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora","haxx:curl","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":14,"n_references":14,"next":{"headline":"Ivanti Pulse Connect Secure Command Injection","id":"CVE-2021-22899"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Micro 5.0","fixed":["7.66.0-4.17.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.0","source":"SUSE-SU-2021:1762-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","fixed":["7.66.0-4.17.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2021:1762-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP3","fixed":["7.66.0-4.17.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3","source":"SUSE-SU-2021:1762-1"},{"ecosystem":"SUSE:Linux Enterprise Point of Sale 11 SP3","fixed":["7.37.0-70.66.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3","source":"SUSE-SU-2021:14760-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11 SP4-LTSS","fixed":["7.37.0-70.66.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS","source":"SUSE-SU-2021:14760-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11-SECURITY","fixed":["7.37.0-70.63.1"],"introduced":["0"],"last_affected":[],"package":"curl-openssl1","purl":"pkg:rpm/suse/curl-openssl1\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011-SECURITY","source":"SUSE-SU-2021:14735-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11-SECURITY","fixed":["7.37.0-70.66.1"],"introduced":["0"],"last_affected":[],"package":"curl-openssl1","purl":"pkg:rpm/suse/curl-openssl1\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011-SECURITY","source":"SUSE-SU-2021:14760-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["7.60.0-11.18.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2021:1763-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["7.60.0-11.18.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2021:1763-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP5","fixed":["7.60.0-11.18.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/suse/curl\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5","source":"SUSE-SU-2021:1763-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["7.66.0-lp152.3.18.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/opensuse/curl\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:0808-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["7.66.0-lp152.3.18.1"],"introduced":["0"],"last_affected":[],"package":"curl-mini","purl":"pkg:rpm/opensuse/curl-mini\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:0808-1"},{"ecosystem":"openSUSE:Leap 15.3","fixed":["7.66.0-4.17.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/opensuse/curl\u0026distro=openSUSE%20Leap%2015.3","source":"openSUSE-SU-2021:1762-1"},{"ecosystem":"openSUSE:Leap 15.3","fixed":["7.66.0-4.17.1"],"introduced":["0"],"last_affected":[],"package":"curl-mini","purl":"pkg:rpm/opensuse/curl-mini\u0026distro=openSUSE%20Leap%2015.3","source":"openSUSE-SU-2021:1762-1"}],"prev":{"headline":"Information disclosure in https://github.com/curl/curl","id":"CVE-2021-22897"},"products":["https://github.com/curl/curl"],"published":"2021-06-11","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["n/a"]},"summary":"An attacker can read sensitive internal memory data from a client using curl's telnet option due to uninitialized stack buffer exposure.","url":"https://insights.sbomify.com/CVE-2021-22898/"}