CVE-2021-26076 Information disclosure in Jira Data Center
Remote attackers can learn user editing modes via insecure cookies during MITM attacks if Jira uses HTTPS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26076?
CVE-2021-26076 is a low-severity vulnerability in Atlassian Jira, published on 14 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The jira.editor.user.mode cookie set by the Jira Editor Plugin in Jira Server and Data Center before version 8.5.12, from version 8.6.0 before version 8.13.4, and from version 8.14.0 before version 8.15.0 allows remote anonymous attackers who can perform an attacker in the middle attack to learn which mode a user is editing in due to the cookie not being set with a secure attribute if Jira was configured to use https.
Which versions are affected by CVE-2021-26076?
It affects 4 products.
Products include Atlassian Data Center, Atlassian Jira, Atlassian Jira Data Center, Atlassian Jira Server.
How do I fix CVE-2021-26076?
No fix has been published for CVE-2021-26076 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-26076 being exploited?
There is no known exploitation of CVE-2021-26076 in the wild and no public exploit code.
Other vulnerabilities in Atlassian Jira
Sources
Also known as GHSA-878x-rm8q-c4xm.