CVE-2026-77620
HIGH
8,7
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
Vector is a high-performance observability data pipeline. From 0.15.0 until 0.57.0, the logstash source feeds each decompressed frame back into its decoder without limiting nested compression depth. An unauthenticated remote peer that can reach the default 0.0.0.0:5044 listener can send many nested compressed frames, causing recursive decoding that exhausts the worker thread stack and aborts the process. The same nested construction amplifies decompressed input, and process termination can halt log ingestion for every tenant on a shared pipeline. This issue is fixed in version 0.57.0.
409
Improper Handling of Highly Compressed Data (Data Amplification)
IncompleteCommon Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Amplification
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Cpu)
Dos: Resource Consumption (Memory)
Applicable Platforms
All platforms may be affected
https://github.com/vectordotdev/vector/commit/57fed991083c9a43d5fda2d5b3bf4718a…
https://github.com/vectordotdev/vector/pull/25825
https://github.com/vectordotdev/vector/releases/tag/v0.57.0
https://github.com/vectordotdev/vector/security/advisories/GHSA-qp6f-fpfx-4gg6