Strix
26.1K

CVE-2020-26160

HIGHCVSS 7.5/10EPSS 2.14%

Last modified

CVE-2020-26160 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m["aud"] (which is allowed by the specification). Because the type assertion fails, "" is the value of aud. EPSS estimates a 2.14% chance of exploitation in the next 30 days.

Description

jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m["aud"] (which is allowed by the specification). Because the type assertion fails, "" is the value of aud. This is a security problem if the JWT token is presented to a service that lacks its own audience check.

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
2.14%

79.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Jwt-Go ProjectJwt-Go<= 3.2.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-26160?
jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m["aud"] (which is allowed by the specification). Because the type assertion fails, "" is the value of aud. This is a security problem if the JWT token is presented to a service that lacks its own audience check.
How severe is CVE-2020-26160?
CVE-2020-26160 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.14% probability of exploitation in the next 30 days.
How do I fix CVE-2020-26160?
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-2020-26160?

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

Scan your code now

Source: NVD / NIST