CVE-2020-11997
mediumpriority · track · 17OT risk · elevatedEPSS 0.013 · 69 %ileEUUSEPSS · scored 2026-10-27
Apache Guacamole 1.2.0 and earlier do not consistently restrict access to connection history based on user visibility. If multiple users share access to the same connection, those users may be able to see which other users have accessed that connection, as well as the IP addresses from which that connection was accessed, even if those users do not otherwise have permission to see other users.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- BIT-guacamole-2020-119972024-03-06vendor · osvUS
Apache Guacamole 1.2.0 and earlier do not consistently restrict access to connection history based on user visibility. If multiple users share access to the same connection, those users may be able to see which other users have accessed that connection, as well as the IP addresses from which that connection was accessed, even if those users do not otherwise have permission to see other users.
- BIT-guacamole-server-2020-119972024-03-06vendor · osvUS
Apache Guacamole 1.2.0 and earlier do not consistently restrict access to connection history based on user visibility. If multiple users share access to the same connection, those users may be able to see which other users have accessed that connection, as well as the IP addresses from which that connection was accessed, even if those users do not otherwise have permission to see other users.
also known as (4)
Other names and identifiers for this entity.
- CNNVD-202101-1500cnnvd
- EUVD-2020-4314enisa_euvd
- BIT-guacamole-2020-11997osv
- BIT-guacamole-server-2020-11997osv
sources
Which sources assert this record, and when.
references (3)
External citations — patches, advisories, analysis.
- https://lists.apache.org/thread.html/r1a9ae9d1608c9f846875c4191cd738f95543d1be06b52dc1320e8117%40%3Cannounce.guacamole.apache.org%3Ecnnvd
- https://lists.apache.org/thread.html/r1a9ae9d1608c9f846875c4191cd738f95543d1be06b52dc1320e8117%40%3Cannounce.guacamole.apache.org%3Eenisa_euvd
- https://lists.apache.org/thread.html/r1a9ae9d1608c9f846875c4191cd738f95543d1be06b52dc1320e8117%40%3Cannounce.guacamole.apache.org%3EMailing ListVendor Advisorynvd
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