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Status published
High
CVE-2021-42697
Akka HTTP 10.1.x before 10.1.15 and 10.2.x before 10.2.7 can...
Vulnerability Description
Akka HTTP 10.1.x before 10.1.15 and 10.2.x before 10.2.7 can encounter stack exhaustion while parsing HTTP headers, which allows a remote attacker to conduct a Denial of Service attack by sending a User-Agent header with deeply nested comments.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://akka.io/blog/
- https://doc.akka.io/docs/akka-http/current/security/2021-CVE-2021-42697-stack-overflow-parsing-user-agent.html
- https://akka.io/blog/news/2021/11/02/akka-http-10.2.7-released
- https://akka.io/blog/news/2021/11/22/akka-http-10.1.15-released
- http://packetstormsecurity.com/files/167018/Akka-HTTP-10.1.14-Denial-Of-Service.html
Affected Vendor
akka
View all reports →Affected Software
http server
Vulnerable Versions:
10.1.0, 10.2.0
Timeline
Official Publish:
November 2nd, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.