CVE-2026-49328 Apache Fesod (Incubating): Improper validation of user-supplied URLs leading to SSRF
Attackers can trigger outbound requests to internal resources via malicious image URLs in Apache Fesod, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-49328?
CVE-2026-49328 is a medium-severity server-side request forgery vulnerability in Apache Fesod (Incubating), published on 1 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Server-Side Request Forgery (SSRF) in the UrlImageConverter component of Apache Fesod (Incubating) fesod-sheet before 2.0.2-incubating allows attackers to cause outbound network requests to internal or otherwise restricted resources via a user-supplied image URL. Users are recommended to upgrade to version 2.0.2-incubating, which fixes this issue.
Weakness: CWE-918
Which versions are affected by CVE-2026-49328?
2 open source packages ship an affected version, including org.apache.fesod:fesod-sheet. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.fesod:fesod-sheet Maven | All versions | 2.0.2-incubating |
org.apache.fesod:fesod-sheet Maven | All versions | 2.0.2-incubating |
Products include Apache Fesod.
How do I fix CVE-2026-49328?
Upgrade org.apache.fesod:fesod-sheet to 2.0.2-incubating or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-49328 being exploited?
There is no known exploitation of CVE-2026-49328 in the wild and no public exploit code.
Sources
Also known as GHSA-vqc2-c9jh-3jjv.