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Vulnerability record · CVE-2020-15879 · published 21 July 2020

CVE-2020-15879: Bitwarden server server-side request forgery (ssrf) vulnerability

Bitwarden · Server

Bitwarden Server 1.35.1 allows SSRF because it does not consider certain IPv6 addresses (ones beginning with fc, fd, fe, or ff, and the :: address) and certain IPv4 addresses (0.0.0.0/8, 127.0.0.0/8, and 169.254.0.0/16).

7.5 CVSS 3.1 High EPSS 2.7% · top 14.6% CWE-918 · Server-side request forgery (SSRF)
7.5CVSS 3.1 base score, v2 5.0
2.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Bitwarden Server 1.35.1 allows SSRF because it does not consider certain IPv6 addresses (ones beginning with fc, fd, fe, or ff, and the :: address) and certain IPv4 addresses (0.0.0.0/8, 127.0.0.0/8, and 169.254.0.0/16).

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/bitwarden/server/pull/827 Third Party Advisory
https://github.com/bitwarden/server/pull/827 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-15879), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.