synced JUST NOW
01 Record

CVE-2026-69205

Http4s: Ember Transfer-Encoding value parsing (TE.CL / TE.0 request smuggling)

HighPUBLISHEDCNA: GitHub_M
CNA base score8.7 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
View raw JSON

02 Description

Http4s: Ember Transfer-Encoding value parsing (TE.CL / TE.0 request smuggling)

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.48% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 41.0% of scored records. A rank, not a probability.
NVD base score
8.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
NVD analysis status
Deferred. NVD last modified this record on 2026-09-16.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-09-15 19:15Z1 MO AGO
Last updated
2026-09-15 19:33Z1 MO AGO
Reserved
2026-08-03
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 8.7)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Weaknesses
  • CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base
Data version
5.2
Document digest
f56937daf96f708fc9ea46bd64f25d4864ae4807ec3cbb2d64d39e5c34eba667

05 Affected products

VendorProductVersionsPlatforms
http4shttp4s< 0.23.35, >= 1.0.0-M1, < 1.0.0-M47—

06 References