TI-2015-08085 Aliases CVE-2015-20110 GHSA-4gpm-r23h-gprw

JHipster generator-jhipster before 2.23.0 allows a timing attack against validateToken…

MEDIUM 40CWE-307Published 2023-10-31 · Updated 2024-09-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass, Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-307 and CWE-208.

Summary

JHipster generator-jhipster before 2.23.0 allows a timing attack against validateToken due to a string comparison that stops at the first character that is different. Attackers can guess tokens by brute forcing one character at a time and observing the timing. This of course drastically reduces the search space to a linear amount of guesses based on the token length times the possible characters.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00732 54th percentileScored 2026-11-07

Fix Fixed generator-jhipster (npm): 2.23.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA
—	generator-jhipster (npm)	before 2.23.0	2.23.0	Patch available	GHSA-4gpm-r23h-gprw

— Vendor— Affected all versions Fixed in — No fix listed CNA
generator-jhipster (npm) Vendor— Affected before 2.23.0 Fixed in 2.23.0 Patch available GHSA-4gpm-r23h-gprw

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:jhipster:jhipster::::::::	before 2.23.0	Vulnerable	jhipster

cpe:2.3:a:jhipster:jhipster:*:*:*:*:*:*:*:* Versions before 2.23.0 Vulnerable ·jhipster

Remediation

Fix · GHSA-4gpm-r23h-gprw generator-jhipster (npm) Fixed in 2.23.0 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2015-20110
2026-10-03 Alias added: GHSA-4gpm-r23h-gprw
2026-11-01 EPSS moved to the 50th–90th percentile

References

Patch 4

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2015-20110

Other 1

https://github.com/jhipster/generator-jhipster

TI-2019-12273 A class generated by the Generator in JHipster before 6.3.0 and JHipster Kotlin through… CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences