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CVE-2015-20110

21
FAUCET Score

CVE-2015-20110 describes a timing attack vulnerability in JHipster generator-jhipster versions prior to 2.23.0. This flaw allows attackers to guess authentication tokens character by character due to a non-constant time string comparison function (validateToken). The vulnerability carries a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity that could lead to high confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.23.0CPE matchmatch criteria
cpe:2.3:a:jhipster:jhipster:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.59%
Probability of exploitation in next 30 days
EPSS Percentile
44.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 22nd percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: generator-jhipsterFixed in: 2.23.0

Vendor Advisories (1)

npmGHSA-4gpm-r23h-gprwhigh

generator-jhipster allows a timing attack against validateToken due to a string comparison that stops at the first character

Oct 31, 2023

References

github.com / jhipster/generator-jhipster/commit/79fe5626cb1bb80f9ac86cf46980748e65d2bdbc
Patch
github.com / jhipster/generator-jhipster/commit/7c49ab3d45dc4921b831a2ca55fb1e2a2db1ee25
Patch
github.com / jhipster/generator-jhipster/compare/v2.22.0...v2.23.0
PatchRelease Notes
github.com / jhipster/generator-jhipster/issues/2095
Issue TrackingPatchVendor Advisory