CVE-2020-36659

In Apache::Session::Browseable before 1.3.6, validity of the X.509 certificate is not checked by...

8.1 HighFix available

In Apache::Session::Browseable before 1.3.6, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.

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: High
Availability: High

Exploit likelihood

0.45%Down 0.4 points since Jan 27, 2023

What each source reports

NVD Score used 8.1

Record: CVE-2020-36659
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-295
Updated: 2026-11-02

CVE List 8.1

Record: CVE-2020-36659
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-295
Updated: 2026-11-02

EUVDEUVD-2020-24105 8.1

Record: EUVD-2020-24105
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-crqh-wr78-6jgr 8.1

In Apache::Session::Browseable before 1.3.6, validity of the X.509 certificate is not checked by...

Record: GHSA-crqh-wr78-6jgr
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-295
Updated: 2026-11-02

OSV 8.1

Record: CVE-2020-36659
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2020-36659 8.1

Record: DEBIAN-CVE-2020-36659
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2020-36659 8.1

Record: UBUNTU-CVE-2020-36659
CVSS 3.1: 8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`libapache-session-browseable-perl` Debian:12	before 1.3.7-1	1.3.7-1
`libapache-session-browseable-perl` Debian:13	before 1.3.7-1	1.3.7-1
`libapache-session-browseable-perl` Debian:14	before 1.3.7-1	1.3.7-1
`libapache-session-browseable-perl` Debian:10	before 1.3.0-1+deb10u1, plus listed versions 1.3.0-1	1.3.0-1+deb10u1
`libapache-session-browseable-perl` Ubuntu:16.04:LTS	All versions, plus listed versions 1.0.2-21.1-1	None known
`libapache-session-browseable-perl` Ubuntu:18.04:LTS	All versions, plus listed versions 1.2.2-11.2.8-1	None known
`libapache-session-browseable-perl` Ubuntu:20.04:LTS	All versions, plus listed versions 1.3.2-11.3.3-11.3.4-11.3.5-1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-36659 is a high vulnerability (CVSS 8.1) in Debian Linux, published January 27, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 38th percentile. Fixed in libapache-session-browseable-perl 1.3.7-1.