CVE-2026-9370 ulisesbocchio jasypt-spring-boot Password Hash SimpleGCMConfig.java getSecretKeySaltGenerator hash predictable salt

Medium 6.3 Published Updated

Attackers can exploit predictable salts in jasypt-spring-boot to weaken password hashing, potentially exposing encrypted data.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-9370?

CVE-2026-9370 is a medium-severity vulnerability in ulisesbocchio jasypt-spring-boot, published on 24 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A weakness has been identified in ulisesbocchio jasypt-spring-boot up to 3.0.5/4.0.4. Affected by this vulnerability is the function getSecretKeySaltGenerator of the file jasypt-spring-boot/src/main/java/com/ulisesbocchio/jasyptspringboot/encryptor/SimpleGCMConfig.java of the component Password Hash Handler. Executing a manipulation can lead to use of a one-way hash with a predictable salt. The attack can be launched remotely. The attack requires a high level of complexity. The exploitation appears to be difficult. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-760, CWE-759

Which versions are affected by CVE-2026-9370?

4 open source packages ship an affected version, including com.github.ulisesbocchio:jasypt-spring-boot and com.github.ulisesbocchio:jasypt-spring-boot-starter.

PackageAffectedFixed in
com.github.ulisesbocchio:jasypt-spring-boot MavenFrom 3.0.0 to 4.0.4None
com.github.ulisesbocchio:jasypt-spring-boot MavenFrom 3.0.0 to 4.0.4None
com.github.ulisesbocchio:jasypt-spring-boot-starter MavenFrom 3.0.0 to 4.0.4None
com.github.ulisesbocchio:jasypt-spring-boot-starter MavenFrom 3.0.0 to 4.0.4None

How do I fix CVE-2026-9370?

No fix has been published for CVE-2026-9370 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-9370 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9370 exists.

Sources

Also known as GHSA-jgj7-c8vj-w563.

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