CVE-2023-41834

Apache Flink Stateful Functions allowed HTTP header injection due to Improper Neutralization of CRLF Sequences

MEDIUM
6.1
CVSS Score
Published: September 19, 2023 at 12:34 PM UTC
Updated: June 17, 2026 at 06:22 AM UTC
1 product affected across 1 vendorFlink Stateful Functions

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Severity
MEDIUM6.1
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

Improper Neutralization of CRLF Sequences in HTTP Headers in Apache Flink Stateful Functions 3.1.0, 3.1.1 and 3.2.0 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via crafted HTTP requests. Attackers could potentially inject malicious content into the HTTP response that is sent to the user's browser. Users should upgrade to Apache Flink Stateful Functions version 3.3.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-74CWE-113

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