CVE-2024-37829: Outline · n/a
Affects OutlineSource CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 9 Jul 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubsysentr0py/Outlinepkg:github/sysentr0py/OutlineOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
To mitigate CVE-2024-37829, organizations should immediately educate users about the risks of clicking unsolicited or suspicious magic sign-in links, emphasizing phishing awareness. Administrators should monitor authentication logs for unusual sign-in patterns or repeated use of sign-in links. Implementing multi-factor authentication (MFA) where possible can reduce the impact of session hijacking. Network-level protections such as web application firewalls (WAFs) can be configured to detect and block suspicious sign-in link patterns. Until an official patch is released, consider disabling or restricting the use of magic sign-in links if feasible, or deploying custom validation to ensure sign-in links are single-use and bound to specific user sessions or IP addresses. Regularly update Outline to the latest versions once patches addressing this vulnerability become available. Additionally, review session management policies to enforce short session lifetimes and automatic invalidation of sessions after logout or inactivity.
Description
An issue in Outline <= v0.76.1 allows attackers to execute a session hijacking attack via user interaction with a crafted magic sign-in link.