{"cve":{"cve_id":"CVE-2026-55548","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.0036,"epss_percentile":0.2881,"epss_as_of":"2026-08-26","description":"Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, the PacketsApi.exportPackets endpoint in yamcs-core/src/main/java/org/yamcs/http/api/PacketsApi.java failed to enforce object-level ReadPacket privileges when a request omitted specific packet names: with an empty name list the ctx.checkObjectPrivileges(ObjectPrivilegeType.ReadPacket, nameSet) call passed over an empty set, no WHERE pname IN filter was applied to the resulting SELECT * FROM tm query, and the onTuple handler streamed every retrieved packet without any per-row authorization check, so a low-privileged or zero-privilege authenticated user could dump the entire raw telemetry packet archive and bypass the role-based access control model. This issue is fixed in versions 5.12.8 and 5.13.2, which enforce per-packet ReadPacket checks in exportPackets.","published_at":"2026-07-16T16:09:35.505000Z","last_modified_at":"2026-07-20T01:29:18.843000Z","cvss_v3_score":4.3,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"poc","ssvc_automatable":false,"ssvc_technical_impact":"partial","cwes":["CWE-284","CWE-862"],"nvd_references":["https://github.com/yamcs/yamcs/security/advisories/GHSA-8xjq-pr36-ccgf","https://github.com/yamcs/yamcs/commit/b566beceba98cc35514b0e1519be126b8c5a0438","https://github.com/yamcs/yamcs/commit/c743cc3acf5b5c53ff5181b94eacc21340f70dd9","https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8","https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2"],"vuln_status":"Analyzed","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-07-16T17:35:28.560681Z","updated_at":"2026-07-20T07:06:21.649420Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"L","value_label":"Low"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"spaceapplications","vendor_name":"spaceapplications","product_slug":"yamcs","product_name":"yamcs","version_start":null,"version_start_inclusive":null,"version_end":"5.12.8","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:spaceapplications:yamcs:*:*:*:*:*:*:*:*"},{"vendor_slug":"yamcs","vendor_name":"yamcs","product_slug":"yamcs","product_name":"yamcs","version_start":"< 5.12.8","version_start_inclusive":true,"version_end":"< 5.12.8","version_end_inclusive":true,"cpe23_uri":"cve5:yamcs:yamcs:< 5.12.8:< 5.12.8"},{"vendor_slug":"yamcs","vendor_name":"yamcs","product_slug":"yamcs","product_name":"yamcs","version_start":">= 5.13.0, < 5.13.2","version_start_inclusive":true,"version_end":">= 5.13.0, < 5.13.2","version_end_inclusive":true,"cpe23_uri":"cve5:yamcs:yamcs:>= 5.13.0, < 5.13.2:>= 5.13.0, < 5.13.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/yamcs/yamcs/security/advisories/GHSA-8xjq-pr36-ccgf","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/yamcs/yamcs/commit/b566beceba98cc35514b0e1519be126b8c5a0438","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/yamcs/yamcs/commit/c743cc3acf5b5c53ff5181b94eacc21340f70dd9","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-07-16T16:09:35.505000Z","label":"CVE published","source":null},{"type":"ssvc_changed","at":"2026-07-16T19:36:28.548654Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-07-16T19:36:28.548654Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-07-16T19:36:28.548654Z","label":"SSVC decision revised","source":"vulnrichment"}]}