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Fencer Vulns
medium 5.9

CVE-2021-39360 json

In GNOME libzapojit through 0.0.3, zpj-skydrive.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, l…

published 2021-08-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25721

cvss
5.9
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

In GNOME libzapojit through 0.0.3, zpj-skydrive.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.

Patch / fix

  • libzapojit SLE Workstation Extension 15 SP3, SLE Module for Package Hub 15 SP3, openSUSE Leap 15.3 0.0.3-150000.3.5.1
  • libzapojit SLE Workstation Extension 12 SP5, SLE Software Development Kit 12 SP5 0.0.3-5.3.1

suse advisories SUSE-SU-2022:3267-1SUSE-SU-2022:3266-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-39360 updated cvss 7.5

libzapojit: missing TLS certificate verification

  • Red Hat Enterprise Linux 7 libzapojit
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.74% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.