{"id":"CVE-2026-107460","state":"PUBLISHED","title":"Apache Fesod (Incubating): UrlImageConverter SSRF protection bypass via DNS rebinding","description":"Server-Side Request Forgery (SSRF) protection in the UrlImageConverter component of Apache Fesod (Incubating) fesod-sheet 2.0.2-incubating can be bypassed through DNS rebinding. When an application accepts an attacker-controlled image URL for spreadsheet writing, the converter checks the hostname's resolved IP addresses and then opens a separate connection that can resolve the hostname again. An attacker who controls DNS responses for the URL hostname may cause the connection to reach a restricted address after validation. CVE-2026-49328 covers SSRF in releases before 2.0.2-incubating; this issue is a DNS rebinding bypass of the protection in 2.0.2-incubating. Apache Fesod (Incubating) 2.1.0-incubating addresses the reported default-fetch scenario by disabling remote URL image fetching by default and requiring an explicit exact-host allowlist when the feature is enabled. Users should upgrade to 2.1.0-incubating. Applications enabling remote URL image fetching should allowlist only hostnames whose DNS and HTTP services are trusted.","publishedAt":"2026-10-13T14:16:02.556Z","updatedAt":"2026-10-20T17:39:28.844Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Fesod (Incubating)"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Fesod (Incubating)","packageName":"org.apache.fesod:fesod-sheet","packageURL":"pkg:maven/org.apache.fesod/fesod-sheet","defaultStatus":"unaffected","versions":[{"version":"2.0.2-incubating","status":"affected","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":["https://github.com/apache/fesod/pull/1035","https://github.com/apache/fesod/releases/tag/2.1.0-incubating","https://cve.org/CVERecord?id=CVE-2026-49328","https://lists.apache.org/thread/oh706yhm32hmw8vx4kh1948h952pfr83"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/107xxx/CVE-2026-107460.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-107460","state":"PUBLISHED","datePublished":"2026-10-13T14:16:02.556Z","dateUpdated":"2026-10-20T17:39:28.844Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-10-08T05:52:18.687Z"},"containers":{"cna":{"title":"Apache Fesod (Incubating): UrlImageConverter SSRF protection bypass via DNS rebinding","descriptions":[{"lang":"en","value":"Server-Side Request Forgery (SSRF) protection in the UrlImageConverter component of Apache Fesod (Incubating) fesod-sheet 2.0.2-incubating can be bypassed through DNS rebinding. When an application accepts an attacker-controlled image URL for spreadsheet writing, the converter checks the hostname's resolved IP addresses and then opens a separate connection that can resolve the hostname again. An attacker who controls DNS responses for the URL hostname may cause the connection to reach a restricted address after validation. CVE-2026-49328 covers SSRF in releases before 2.0.2-incubating; this issue is a DNS rebinding bypass of the protection in 2.0.2-incubating. Apache Fesod (Incubating) 2.1.0-incubating addresses the reported default-fetch scenario by disabling remote URL image fetching by default and requiring an explicit exact-host allowlist when the feature is enabled. Users should upgrade to 2.1.0-incubating. Applications enabling remote URL image fetching should allowlist only hostnames whose DNS and HTTP services are trusted."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Fesod (Incubating)","packageName":"org.apache.fesod:fesod-sheet","packageURL":"pkg:maven/org.apache.fesod/fesod-sheet","defaultStatus":"unaffected","versions":[{"version":"2.0.2-incubating","status":"affected","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":[{"url":"https://github.com/apache/fesod/pull/1035","tags":["patch"]},{"url":"https://github.com/apache/fesod/releases/tag/2.1.0-incubating","tags":["release-notes"]},{"url":"https://cve.org/CVERecord?id=CVE-2026-49328","tags":["related"]},{"url":"https://lists.apache.org/thread/oh706yhm32hmw8vx4kh1948h952pfr83","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"moderate"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","description":"CWE-918 Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-10-13T14:16:02.556Z"},"source":{"discovery":"EXTERNAL"},"credits":[{"lang":"en","value":"Venkatraman Kumar","type":"reporter"},{"lang":"en","value":"Wenhao Zeng","type":"reporter"},{"lang":"en","value":"Wanxin Yin","type":"reporter"},{"lang":"en","value":"George Chen","type":"reporter"},{"lang":"en","value":"Zeka Irving (Thresh)","type":"reporter"}],"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.1,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-20T17:39:18.695927Z","id":"CVE-2026-107460","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-20T17:39:28.844Z"}}]}}}