{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-5122","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-03-30T07:46:42.677Z","datePublished":"2026-03-30T14:15:14.485Z","dateUpdated":"2026-03-30T16:38:44.520Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-03-30T14:15:14.485Z"},"title":"osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-284","lang":"en","description":"Improper Access Controls"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-266","lang":"en","description":"Incorrect Privilege Assignment"}]}],"affected":[{"vendor":"osrg","product":"GoBGP","versions":[{"version":"4.0","status":"affected"},{"version":"4.1","status":"affected"},{"version":"4.2","status":"affected"},{"version":"4.3.0","status":"affected"}],"modules":["BGP OPEN Message Handler"]}],"descriptions":[{"lang":"en","value":"A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is reported as difficult. The patch is named 2b09db390a3d455808363c53e409afe6b1b86d2d. It is suggested to install a patch to address this issue."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.3,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":3.7,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C","baseSeverity":"LOW"}},{"cvssV3_0":{"version":"3.0","baseScore":3.7,"vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C","baseSeverity":"LOW"}},{"cvssV2_0":{"version":"2.0","baseScore":2.6,"vectorString":"AV:N/AC:H/Au:N/C:N/I:P/A:N/E:ND/RL:OF/RC:C"}}],"timeline":[{"time":"2026-03-30T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-03-30T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-03-30T09:51:53.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"rensiru (VulDB User)","type":"reporter"}],"references":[{"url":"https://vuldb.com/vuln/354154","name":"VDB-354154 | osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/354154/cti","name":"VDB-354154 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/780124","name":"Submit #780124 | GoBGP 4.3.0 Improper Handling of Length Parameter Inconsistency","tags":["third-party-advisory"]},{"url":"https://github.com/osrg/gobgp/pull/3343","tags":["issue-tracking","patch"]},{"url":"https://github.com/osrg/gobgp/commit/2b09db390a3d455808363c53e409afe6b1b86d2d","tags":["patch"]},{"url":"https://github.com/osrg/gobgp/","tags":["product"]}],"tags":["x_open-source"]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-30T16:38:21.954548Z","id":"CVE-2026-5122","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-30T16:38:44.520Z"}}]}}