CVE-2021-39361

5.9 MEDIUM

In GNOME evolution-rss through 0.3.96, network-soup.c does not enable TLS certificate verification on the SoupSessionSync objects it crea...

Published: 2021-08-22 · Last updated: 2026-06-17

Severity and scoring

CVSS: 5.9 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE: CWE-295

Affected products

Vendor	Product
gnome	evolution-rss

Description

In GNOME evolution-rss through 0.3.96, network-soup.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. NOTE: this is similar to CVE-2016-20011.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-39361
[Vendor advisory]https://blogs.gnome.org/mcatanzaro/2021/05/25/reminder-soupsessionsync-and-soupsessionasync-default-to-no-tls-certificate-verification/
[Vendor advisory]https://gitlab.gnome.org/GNOME/evolution-rss/-/issues/11
[Vendor advisory]https://blogs.gnome.org/mcatanzaro/2021/05/25/reminder-soupsessionsync-and-soupsessionasync-default-to-no-tls-certificate-verification/
[Vendor advisory]https://gitlab.gnome.org/GNOME/evolution-rss/-/issues/11

Related CVEs

Same vendor

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CVE-2026-5201 — A flaw was found in the gdk-pixbuf library (7.5 HIGH)
CVE-2026-5119 — A flaw was found in libsoup (5.9 MEDIUM)
CVE-2026-4271 — A flaw was found in libsoup, a library for handling HTTP requests (5.3 MEDIUM)

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