Apache Fesod (Incubating): UrlImageConverter SSRF protection bypass via DNS rebinding
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.
CVE-2026-107460
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-107460
Apache Fesod (Incubating)
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Apache Software Foundation",
"product": "Apache Fesod (Incubating)",
"versions": [
{
"status": "affected",
"version": "2.0.2-incubating",
"versionType": "semver"
}
],
"packageURL": "pkg:maven/org.apache.fesod/fesod-sheet",
"packageName": "org.apache.fesod:fesod-sheet",
"collectionURL": "https://repo.maven.apache.org/maven2",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-107460
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #42417 · Revision 1
- Added to Heist Feed
- Publisher date