CVE-2022-41915

MEDIUM
6.5
CVSS Score
Published: December 13, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 05:04 AM UTC
2 products affected across 2 vendorsDebian LinuxNetty

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1.0%
SSVC
PoC

Description

Netty project is an event-driven asynchronous network application framework. Starting in version 4.1.83.Final and prior to 4.1.86.Final, when calling `DefaultHttpHeadesr.set` with an _iterator_ of values, header value validation was not performed, allowing malicious header values in the iterator to perform HTTP Response Splitting. This issue has been patched in version 4.1.86.Final. Integrators can work around the issue by changing the `DefaultHttpHeaders.set(CharSequence, Iterator<?>)` call, into a `remove()` call, and call `add()` in a loop over the iterator of values.

Affected

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

v < 4.1.86.Final4.1.83 ≤ v < 4.1.864.1.83.Final ≤ v < 4.1.83.Final*4.1.83.Final
Affected range stops below 4.1.83.Final*, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.86, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.1.86.Final, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

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

CVSS

6.5MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-113CWE-436

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