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GHSA-35fr-h7jr-hh86

MediumCVSS 6.5 / 10
Published Dec 6, 2019·Last modified Mar 14, 2026
Affected Components(0)

No affected components available

Description

Versions of Armeria 0.85.0 through and including 0.96.0 are vulnerable to HTTP response splitting, which allows remote attackers to inject arbitrary HTTP headers via CRLF sequences when unsanitized data is used to populate the headers of an HTTP response.

Impact

  1. Cross-User Defacement
  2. Cache Poisoning
  3. Cross-Site Scripting (XSS)
  4. Page Hijacking

Root Cause

The root cause is due to the usage of Netty without the HTTP header validation.

https://github.com/line/armeria/blob/f0d870fde1088114070be31b67f7df0a21e835c6/core/src/main/java/com/linecorp/armeria/common/DefaultHttpHeaders.java#L23

Patches

This vulnerability has been patched in 0.97.0.

References

CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') https://github.com/ratpack/ratpack/security/advisories/GHSA-mvqp-q37c-wf9j

For more information

If you have any questions or comments about this advisory:

Risk Scores
Base Score
6.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.

Threat Intelligence
6.0

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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