Apache Fesod (Incubating): UrlImageConverter SSRF protection bypass via DNS rebinding

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107460
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-13 15:17:31 UTC
Updated2026-10-13 15:17:31 UTC
DescriptionServer-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.

Risk And Classification

Problem Types: CWE-918 | CWE-918 CWE-918 Server-Side Request Forgery (SSRF)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Fesod Incubating affected 2.0.2-incubating semver Not specified

References

ReferenceSourceLinkTags
cve.org/CVERecord [email protected] cve.org
lists.apache.org/thread/oh706yhm32hmw8vx4kh1948h952pfr83 [email protected] lists.apache.org
github.com/apache/fesod/pull/1035 [email protected] github.com
github.com/apache/fesod/releases/tag/2.1.0-incubating [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Venkatraman Kumar (en)

CNA: Wenhao Zeng (en)

CNA: Wanxin Yin (en)

CNA: George Chen (en)

CNA: Zeka Irving (Thresh) (en)

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