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CVE-2026-23996

19
FAUCET Score

CVE-2026-23996 is a timing side-channel vulnerability in

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.0CPE matchmatch criteria
cpe:2.3:a:athroniaeth:fastapi_api_key:*:*:*:*:*:python:*:*

CVSS Data

CVSS version used by this source: 3.1

3.7LOW

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.25%
Probability of exploitation in next 30 days
EPSS Percentile
16.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0025 is in the 9th percentile among its peer group of 1,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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
pippatch availablevia ghsa
Product: fastapi-api-keyFixed in: 1.1.0

Vendor Advisories (1)

pipGHSA-95c6-p277-p87glow

FastAPI Api Key has a timing side-channel in verify_key that allows statistical key validity detection

Jan 21, 2026

References

github.com / Athroniaeth/fastapi-api-key/commit/310b2c5c77305f38c63c0b917539a0344071dfd8
Patch
github.com / Athroniaeth/fastapi-api-key/releases/tag/1.1.0
ProductRelease Notes
github.com / Athroniaeth/fastapi-api-key/security/advisories/GHSA-95c6-p277-p87g
MitigationPatchVendor Advisory