What is CVE-2026-49979?

CVE-2026-49979 is a low-severity vulnerability in Appsmith, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 2.7/10. Published 2026-06-24.

How severe is CVE-2026-49979?

Low severity. CVSS v3 base score is 2.7 out of 10.

SSRF in Appsmith

CVE-2026-49979

Appsmith is a platform to build admin panels, internal tools, and dashboards. Prior to 1.99, the POST /api/v1/admin/send-test-email endpoint accepts attacker-controlled smtpHost and smtpPort values and establishes a raw JavaMail TCP connec…

EPSS: 0.003 (17.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.

Affected products

Appsmith
Appsmithorg Appsmith — versions < 1.99

Weakness classification (CWE)

CWE-209 — Generation of Error Message Containing Sensitive Information
CWE-918 — Server-Side Request Forgery (SSRF)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-49979?: CVE-2026-49979 is a low-severity vulnerability in Appsmith, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 2.7/10. Published 2026-06-24.
How severe is CVE-2026-49979?: Low severity. CVSS v3 base score is 2.7 out of 10.