CVE-2015-10004

Name: CVE-2015-10004
Creator: NVD / NIST
Published: 2022-12-27T22:15:10.947+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2015-10004 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

Token validation methods are susceptible to a timing side-channel during HMAC comparison. With a large enough number of requests over a low latency connection, an attacker may use this to determine the expected HMAC.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.75%

50.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-668

Affected Software

Vendor	Product	Versions
Json Web Token Project	Json Web Token	All versions

References

https://github.com/robbert229/jwt/commit/ca1404ee6e83fcbafb66b09ed0d543850a15b654Patch, Third Party Advisory
https://github.com/robbert229/jwt/issues/12Issue Tracking, Third Party Advisory
https://pkg.go.dev/vuln/GO-2020-0023Patch, Vendor Advisory
https://github.com/robbert229/jwt/commit/ca1404ee6e83fcbafb66b09ed0d543850a15b654Patch, Third Party Advisory
https://github.com/robbert229/jwt/issues/12Issue Tracking, Third Party Advisory
https://pkg.go.dev/vuln/GO-2020-0023Patch, Vendor Advisory

Timeline

Published: Dec 27, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-10004?

How severe is CVE-2015-10004?

CVE-2015-10004 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2015-10004?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-10004?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST