CVE-2021-39360
In GNOME libzapojit through 0.0.3, zpj-skydrive.c does not enable TLS certificate verification on...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-39360- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-295
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-39360- Updated
- 2026-11-02
EUVDEUVD-2021-25721 No score
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.
- Record
EUVD-2021-25721- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3j9h-5r8r-rrxc No score
In GNOME libzapojit through 0.0.3, zpj-skydrive.c does not enable TLS certificate verification on...
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.
- Record
GHSA-3j9h-5r8r-rrxc- Weakness
- CWE-295
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-39360- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2021-39360
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.
- Record
DEBIAN-CVE-2021-39360- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Show 6 moreShow less
OSVOESA-2021-1440
libzapojit security update
GLib/GObject wrapper for the SkyDrive and Hotmail REST APIs.
Security Fix(es):
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.(CVE-2021-39360)
- Record
OESA-2021-1440- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-39360
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.
- Record
UBUNTU-CVE-2021-39360- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVMGASA-2021-0504 No score
Updated libzapojit packages fix security vulnerability
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. (CVE-2021-39360)
- Record
MGASA-2021-0504- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:11654-1 No score
libzapojit-0_0-0-0.0.3-7.1 on GA media
These are all security issues fixed in the libzapojit-0_0-0-0.0.3-7.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:11654-1- Updated
- 2026-11-02
OSVSUSE-SU-2022:3266-1 No score
Security update for libzapojit
This update for libzapojit fixes the following issues:
- CVE-2021-39360: Fixed missing guard against invalid SSL certificates (bsc#1189844).
- Record
SUSE-SU-2022:3266-1- Updated
- 2026-11-02
OSVSUSE-SU-2022:3267-1 No score
Security update for libzapojit
This update for libzapojit fixes the following issues:
- CVE-2021-39360: Fixed missing guard against invalid SSL certificates (bsc#1189844).
- Record
SUSE-SU-2022:3267-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libzapojitDebian:11 |
All versions, plus listed versions 0.0.3-5 |
None known |
libzapojitMageia:8 |
before 0.0.3-9.1.mga8 | 0.0.3-9.1.mga8 |
libzapojitopenEuler:20.03-LTS-SP1 |
before 0.0.3-16.oe1 | 0.0.3-16.oe1 |
libzapojitopenEuler:20.03-LTS-SP2 |
before 0.0.3-16.oe1 | 0.0.3-16.oe1 |
libzapojitSUSE:Linux Enterprise Software Development Kit 12 SP5 |
before 0.0.3-5.3.1 | 0.0.3-5.3.1 |
libzapojitSUSE:Linux Enterprise Workstation Extension 12 SP5 |
before 0.0.3-5.3.1 | 0.0.3-5.3.1 |
libzapojitSUSE:Linux Enterprise Module for Package Hub 15 SP3 |
before 0.0.3-150000.3.5.1 | 0.0.3-150000.3.5.1 |
libzapojitSUSE:Linux Enterprise Workstation Extension 15 SP3 |
before 0.0.3-150000.3.5.1 | 0.0.3-150000.3.5.1 |
libzapojitopenSUSE:Leap 15.3 |
before 0.0.3-150000.3.5.1 | 0.0.3-150000.3.5.1 |
libzapojitUbuntu:16.04:LTS |
All versions, plus listed versions 0.0.3-1ubuntu1 |
None known |
libzapojitUbuntu:18.04:LTS |
All versions, plus listed versions 0.0.3-30.0.3-4 |
None known |
libzapojitUbuntu:20.04:LTS |
All versions, plus listed versions 0.0.3-5 |
None known |
libzapojitUbuntu:22.04:LTS |
All versions, plus listed versions 0.0.3-5 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-39360 is a medium vulnerability (CVSS 5.9) in Gnome Libzapojit, published August 22, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.74%, the 54th percentile. Fixed in libzapojit 0.0.3-9.1.mga8.
References
blogs.gnome.org/mcatanzaro/2021/05/25/reminder-soupsessionsync-and-soupsessionasync-default-to-no-tls-certificate-verification
gitlab.gnome.org/GNOME/libzapojit/-/issues/4
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNSIMQXP6VQWJXI7VW7ZCLCS4NWW465T
nvd.nist.gov/vuln/detail/CVE-2021-39360
Show 15 moreShow less
github.com/advisories/GHSA-3j9h-5r8r-rrxc
security-tracker.debian.org/tracker/CVE-2021-39360
advisories.mageia.org/MGASA-2021-0504.html
bugs.mageia.org/show_bug.cgi?id=29585
openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1440
suse.com/support/update/announcement/2022/suse-su-20223266-1
bugzilla.suse.com/1189844
ubuntu.com/security/CVE-2021-39360
cve.org/CVERecord?id=CVE-2021-39360