CVE-2020-8169 Information disclosure in https://github.com/curl/curl

What is CVE-2020-8169?

CVE-2020-8169 is a high-severity vulnerability in Debian Debian Linux, published on 14 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

curl 7.62.0 through 7.70.0 is vulnerable to an information disclosure vulnerability that can lead to a partial password being leaked over the network and to the DNS server(s).

Weakness: CWE-200

Which versions are affected by CVE-2020-8169?

It affects 5 products.

Products include Debian Debian Linux, Haxx Curl, Siemens Simatic Tim 1531 Irc Firmware, Siemens Sinec Infrastructure Network Services, Splunk Universal Forwarder.

How do I fix CVE-2020-8169?

Upgrade to a fixed version.

Is CVE-2020-8169 being exploited?

There is no known exploitation of CVE-2020-8169 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2020-8169, CLEANSTART-2026-QT94099, CURL-CVE-2020-8169, DEBIAN-CVE-2020-8169, ECHO-8c09-3ac9-759b, GHSA-whwh-vhp2-pj62 and 2 more.