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GHSA-crxp-chh4-9ghp

HighCVSS 7.5 / 10
Published Jan 13, 2026·Last modified Feb 3, 2026
Affected Components(0)

No affected components available

Description

Vulnerability

https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovy#L866-L874

https://github.com/samrocketman/jervis/blob/157d2b63ffa5c4bb1d8ee2254950fd2231de2b05/src/main/groovy/net/gleske/jervis/tools/SecurityIO.groovy#L891-L900

Same passphrase + same plaintext = same ciphertext (IV reuse)

Impact

Severity is considered low for internal uses of this library but if there's any consumer using these methods directly then this is considered high.

Significant reduction in the security of the encryption scheme. Pattern analysis becomes possible.

Patches

Random IV will be generated and prepended to the ciphertext.

Upgrade to Jervis 2.2.

Workarounds

None

Risk Scores
Base Score
7.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.

Threat Intelligence
6.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.20%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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