CVE-2026-55548

{"id": "CVE-2026-55548", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55548", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-16T18:13:25.756720Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "yamcs", "product": "yamcs", "versions": [{"status": "affected", "version": "< 5.12.8"}, {"status": "affected", "version": ">= 5.13.0, < 5.13.2"}]}]}], "published": "2026-07-16T17:16:57.987", "references": [{"url": "https://github.com/yamcs/yamcs/commit/b566beceba98cc35514b0e1519be126b8c5a0438", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/yamcs/yamcs/commit/c743cc3acf5b5c53ff5181b94eacc21340f70dd9", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.8", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.13.2", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-8xjq-pr36-ccgf", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-8xjq-pr36-ccgf", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-07-20T01:29:18.843", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:spaceapplications:yamcs:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "81D62DB5-BF70-4A07-81D4-C694B5F692FD", "versionEndExcluding": "5.12.8"}, {"criteria": "cpe:2.3:a:spaceapplications:yamcs:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9E78C762-57A9-4D1D-95AD-B4377959BF20", "versionEndExcluding": "5.13.2", "versionStartIncluding": "5.13.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}