CVE-2026-88819

Published Sep 14, 2026 Modified Sep 16, 2026 CWE-290 CWE-345

Description

In Siglet current and past versions the refresh token handler do not enforce proof of possession of the issuer DID.

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EPSS — Exploit Prediction

0.0012
Probability of exploitation
0.02%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-290 CWE-290
CWE-345 CWE-345

References

Frequently Asked Questions

What is CVE-2026-88819? +
In Siglet current and past versions the refresh token handler do not enforce proof of possession of the issuer DID.
How do I check if I'm vulnerable to CVE-2026-88819? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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