{"id":"CVE-2026-86157","state":"PUBLISHED","title":"Exposure of Privileged IPC Functionality in Progress Telerik Fiddler Everywhere","description":"Exposure of privileged IPC functionality in Progress Telerik Fiddler Everywhere before version 8.2.0 allows a local, low-privileged attacker who can modify application launch parameters and persuade a user to start the application to replace the application UI or settings with attacker-controlled content. Successful exploitation could result in disclosure of OAuth authentication tokens, execution of locally accessible programs, or unauthorized modification of application-generated configuration files.","publishedAt":"2026-09-29T06:34:17.555Z","updatedAt":"2026-09-30T15:28:20.346Z","severity":{"score":5.6,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N","source":"ProgressSoftware"},"assigner":"ProgressSoftware","products":["Progress Software Progress® Telerik® Fiddler® Everywhere"],"affected":[{"vendor":"Progress Software","product":"Progress® Telerik® Fiddler® Everywhere","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThan":"8.2.0","versionType":"custom"}]}],"references":["https://www.telerik.com/fiddler/fiddler-everywhere/documentation/knowledge-base/kb-security-exposed-dangerous-method-or-function-cve-2026-86157"],"weaknesses":["CWE-749"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86157.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86157","state":"PUBLISHED","datePublished":"2026-09-29T06:34:17.555Z","dateUpdated":"2026-09-30T15:28:20.346Z","assignerShortName":"ProgressSoftware","assignerOrgId":"f9fea0b6-671e-4eea-8fde-31911902ae05","dateReserved":"2026-09-05T09:09:32.191Z"},"containers":{"cna":{"title":"Exposure of Privileged IPC Functionality in Progress Telerik Fiddler Everywhere","descriptions":[{"lang":"en","value":"Exposure of privileged IPC functionality in Progress Telerik Fiddler Everywhere before version 8.2.0 allows a local, low-privileged attacker who can modify application launch parameters and persuade a user to start the application to replace the application UI or settings with attacker-controlled content. Successful exploitation could result in disclosure of OAuth authentication tokens, execution of locally accessible programs, or unauthorized modification of application-generated configuration files."}],"affected":[{"vendor":"Progress Software","product":"Progress® Telerik® Fiddler® Everywhere","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThan":"8.2.0","versionType":"custom"}]}],"references":[{"url":"https://www.telerik.com/fiddler/fiddler-everywhere/documentation/knowledge-base/kb-security-exposed-dangerous-method-or-function-cve-2026-86157","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":5.6,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-749","lang":"en","description":"CWE-749 Exposed Dangerous Method or Function","type":"CWE"}]}],"providerMetadata":{"shortName":"ProgressSoftware","orgId":"f9fea0b6-671e-4eea-8fde-31911902ae05","dateUpdated":"2026-09-30T14:06:18.125Z"},"impacts":[{"capecId":"CAPEC-122","descriptions":[{"lang":"en","value":"CAPEC-122 Privilege Abuse."}]}],"workarounds":[{"lang":"en","value":"Users should verify that Fiddler Everywhere shortcuts have not been modified with additional command-line arguments, verify the configured browser executable path, and avoid using application-generated authentication links when manual authentication is available.","supportingMedia":[{"type":"text/html","base64":false,"value":"Users should verify that Fiddler Everywhere shortcuts have not been modified with additional command-line arguments, verify the configured browser executable path, and avoid using application-generated authentication links when manual authentication is available."}]}],"credits":[{"lang":"en","value":"Ezinne Kalu (github.com/zikk090)","type":"finder"}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-86157","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-30T15:18:29.456254Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-30T15:28:20.346Z"}}]}}}