CVE-2026-90944: Missing Auth (CVSS 8.2)

Description

Krayin CRM through 2.2.6 exposes the POST /admin/mail/inbound-parse endpoint without authentication, allowing unauthenticated attackers to inject arbitrary emails into the CRM inbox. Attackers can supply crafted RFC 2822 messages with forged sender information and headers to insert emails with any subject and body, including replies to existing conversation threads.

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CVSS v3.1 Score

8.2

HIGH

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

EPSS — Exploit Prediction

0.0071

Probability of exploitation

0.52%

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-306 Missing Authentication

References

Other References

https://github.com/krayin/laravel-crm https://github.com/krayin/laravel-crm/blob/v2.2.6/bootstrap/app.php https://github.com/krayin/laravel-crm/blob/v2.2.6/packages/Webkul/Admin/src/Routes/Admin/mail-routes.php https://github.com/krayin/laravel-crm/issues/2560 https://www.vulncheck.com/advisories/krayin-crm-through-2.2.6-unauthenticated-email-injection-via-inbound-parse https://github.com/krayin/laravel-crm/issues/2560

Frequently Asked Questions

What is CVE-2026-90944? +

Krayin CRM through 2.2.6 exposes the POST /admin/mail/inbound-parse endpoint without authentication, allowing unauthenticated attackers to inject arbitrary emails into the CRM inbox. Attackers can supply crafted RFC 2822 messages with forged sender information and headers to insert emails with any subject and body, including replies to existing conversation threads. It has a CVSS v3.1 base score of 8.2 (HIGH).

How severe is CVE-2026-90944? +

CVE-2026-90944 has a CVSS v3.1 score of 8.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0071, placing it in the 1th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-90944? +

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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CVE-2026-90944