{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2026-21428","title":"Title"},{"category":"description","text":"cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.30.0, the ``write_headers`` function does not check for CR & LF characters in user supplied headers, allowing untrusted header value to escape header lines.\nThis vulnerability allows attackers to add extra headers, modify request body unexpectedly & trigger an SSRF attack. When combined with a server that supports http1.1 pipelining (springboot, python twisted etc), this can be used for server side request forgery (SSRF). Version 0.30.0 fixes this issue.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2026-21428","url":"https://www.suse.com/security/cve/CVE-2026-21428"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1255835 for CVE-2026-21428","url":"https://bugzilla.suse.com/1255835"}],"title":"SUSE CVE CVE-2026-21428","tracking":{"current_release_date":"2026-03-13T13:24:42Z","generator":{"date":"2026-01-08T00:25:55Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2026-21428","initial_release_date":"2026-01-08T00:25:55Z","revision_history":[{"date":"2026-01-08T00:25:55Z","number":"2","summary":"vulnerabilities added,references added,severity changed from  to important"},{"date":"2026-01-13T00:24:23Z","number":"3","summary":"more updates marked as affected"},{"date":"2026-03-10T00:29:15Z","number":"4","summary":"unknown changes"},{"date":"2026-03-13T13:24:42Z","number":"5","summary":"more updates marked as affected"}],"status":"interim","version":"5"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"SUSE Linux Enterprise Server 16.0","product":{"name":"SUSE Linux Enterprise Server 16.0","product_id":"SUSE Linux Enterprise Server 16.0","product_identification_helper":{"cpe":"cpe:/o:suse:sles:16:16.0:server"}}},{"category":"product_name","name":"SUSE Linux Enterprise Server for SAP applications 16.0","product":{"name":"SUSE Linux Enterprise Server for SAP applications 16.0","product_id":"SUSE Linux Enterprise Server for SAP applications 16.0","product_identification_helper":{"cpe":"cpe:/o:suse:sles:16:16.0:server-sap"}}},{"category":"product_version","name":"cpp-httplib","product":{"name":"cpp-httplib","product_id":"cpp-httplib","product_identification_helper":{"purl":"pkg:rpm/suse/cpp-httplib@"}}},{"category":"product_version","name":"libcpp-httplib0_22","product":{"name":"libcpp-httplib0_22","product_id":"libcpp-httplib0_22","product_identification_helper":{"purl":"pkg:rpm/suse/libcpp-httplib0_22@?upstream=cpp-httplib.src.rpm"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"libcpp-httplib0_22 as component of SUSE Linux Enterprise Server 16.0","product_id":"SUSE Linux Enterprise Server 16.0:libcpp-httplib0_22"},"product_reference":"libcpp-httplib0_22","relates_to_product_reference":"SUSE Linux Enterprise Server 16.0"},{"category":"default_component_of","full_product_name":{"name":"cpp-httplib as component of SUSE Linux Enterprise Server 16.0","product_id":"SUSE Linux Enterprise Server 16.0:cpp-httplib"},"product_reference":"cpp-httplib","relates_to_product_reference":"SUSE Linux Enterprise Server 16.0"},{"category":"default_component_of","full_product_name":{"name":"libcpp-httplib0_22 as component of SUSE Linux Enterprise Server for SAP applications 16.0","product_id":"SUSE Linux Enterprise Server for SAP applications 16.0:libcpp-httplib0_22"},"product_reference":"libcpp-httplib0_22","relates_to_product_reference":"SUSE Linux Enterprise Server for SAP applications 16.0"},{"category":"default_component_of","full_product_name":{"name":"cpp-httplib as component of SUSE Linux Enterprise Server for SAP applications 16.0","product_id":"SUSE Linux Enterprise Server for SAP applications 16.0:cpp-httplib"},"product_reference":"cpp-httplib","relates_to_product_reference":"SUSE Linux Enterprise Server for SAP applications 16.0"}]},"vulnerabilities":[{"cve":"CVE-2026-21428","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2026-21428"}],"notes":[{"category":"general","text":"cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.30.0, the ``write_headers`` function does not check for CR & LF characters in user supplied headers, allowing untrusted header value to escape header lines.\nThis vulnerability allows attackers to add extra headers, modify request body unexpectedly & trigger an SSRF attack. When combined with a server that supports http1.1 pipelining (springboot, python twisted etc), this can be used for server side request forgery (SSRF). Version 0.30.0 fixes this issue.","title":"CVE description"}],"product_status":{"known_affected":["SUSE Linux Enterprise Server 16.0:cpp-httplib","SUSE Linux Enterprise Server 16.0:libcpp-httplib0_22","SUSE Linux Enterprise Server for SAP applications 16.0:cpp-httplib","SUSE Linux Enterprise Server for SAP applications 16.0:libcpp-httplib0_22"]},"references":[{"category":"external","summary":"CVE-2026-21428","url":"https://www.suse.com/security/cve/CVE-2026-21428"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1255835 for CVE-2026-21428","url":"https://bugzilla.suse.com/1255835"}],"threats":[{"category":"impact","date":"2026-01-01T19:00:08Z","details":"important"}],"title":"CVE-2026-21428"}]}