CVE-2026-41603

Description

Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue.

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CVSS v3.1 Score

7.4

HIGH

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

EPSS — Exploit Prediction

0.0003

Probability of exploitation

0.07%

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-297 CWE-297

CWE-306 Missing Authentication

Affected Products

Vendor	Product	Versions
apache	thrift	< 0.23.0

References

Advisories & Patches

https://lists.apache.org/thread/lb4j0zyd5f3g36cos0wql925przpnwql

Other References

http://www.openwall.com/lists/oss-security/2026/04/28/7

Frequently Asked Questions

What is CVE-2026-41603? +

Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue. It has a CVSS v3.1 base score of 7.4 (HIGH).

How severe is CVE-2026-41603? +

CVE-2026-41603 has a CVSS v3.1 score of 7.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0003, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-41603? +

CVE-2026-41603 affects products from apache, specifically: thrift. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-41603? +

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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