CVE-2018-16131
The decodeRequest and decodeRequestWith directives in Lightbend Akka HTTP 10.1.x through 10.1.4 and 10.0.x through 10.0.13 allow remote attackers to cause a denial of service (memory consumption and daemon crash) via a ZIP bomb.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The decodeRequest and decodeRequestWith directives in Lightbend Akka HTTP 10.1.x through 10.1.4 and 10.0.x through 10.0.13 allow remote attackers to cause a denial of service (memory consumption and daemon crash) via a ZIP bomb.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.05% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- lightbend/akka http
- Source
- cve@mitre.org
EPSS 3.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://akka.io/blog/news/2018/08/30/akka-http-dos-vulnerability-foundVendor Advisory
- https://doc.akka.io/docs/akka-http/current/security/2018-09-05-denial-of-service-via-decodeRequest.htmlVendor Advisory
- https://github.com/akka/akka-http/issues/2137Patch, Third Party Advisory
- https://groups.google.com/forum/#%21topic/akka-security/Dj7INsYWdjg
- https://akka.io/blog/news/2018/08/30/akka-http-dos-vulnerability-foundVendor Advisory
- https://doc.akka.io/docs/akka-http/current/security/2018-09-05-denial-of-service-via-decodeRequest.htmlVendor Advisory
- https://github.com/akka/akka-http/issues/2137Patch, Third Party Advisory
- https://groups.google.com/forum/#%21topic/akka-security/Dj7INsYWdjg
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.