Resource exhaustion in Akka Http_server
CVE-2023-44487
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.944 (100.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Public proof-of-concept exploits
- bcdannyboy/CVE-2023-44487
- secengjeff/rapidresetclient
- Appsynergy-io/CVE-2023-44487
- studiogangster/CVE-2023-44487
- nxenon/cve-2023-44487
- threatlabindonesia/CVE-2023-44487-HTTP-2-Rapid-Reset-Exploit-PoC
- ndrscodes/http2-rst-stream-attacker
- tpirate/cve-2023-44487-POC
- ReToCode/golang-CVE-2023-44487
- moften/CVE-2023-44487-HTTP-2-Rapid-Reset-Attack
References
- cve@mitre.org (Product, Release Notes)
- cve@mitre.org (Technical Description, Vendor Advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Technical Description, Vendor Advisory)
- cve@mitre.org (Mitigation, Vendor Advisory)
- cve@mitre.org (Technical Description, Vendor Advisory)
- cve@mitre.org (Issue Tracking)
- cve@mitre.org (Third Party Advisory, Vendor Advisory)
- cve@mitre.org (Press/Media Coverage)
- cve@mitre.org (Patch, Issue Tracking)
Frequently asked questions
- What is CVE-2023-44487?
- CVE-2023-44487 is a high-severity vulnerability in Akka Http_server, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-10-10.
- How severe is CVE-2023-44487?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-44487 known to be exploited?
- Yes. CVE-2023-44487 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-10-10), indicating it is being actively exploited. 140 public proof-of-concept repositories are indexed.