Description
Sending an HTTP request/response body with greater than 2^31 bytes triggers an infinite loop in proxygen::coro::HTTPQuicCoroSession which blocks the backing event loop and unconditionally appends data to a std::vector per-loop iteration. This issue leads to unbounded memory growth and eventually causes the process to run out of memory.
Published: 2025-12-02
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 19 Dec 2025 18:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:facebook:proxygen:*:*:*:*:*:*:*:*

Wed, 03 Dec 2025 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Facebook
Facebook proxygen
Vendors & Products Facebook
Facebook proxygen

Wed, 03 Dec 2025 01:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-834
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 02 Dec 2025 22:15:00 +0000

Type Values Removed Values Added
Description Sending an HTTP request/response body with greater than 2^31 bytes triggers an infinite loop in proxygen::coro::HTTPQuicCoroSession which blocks the backing event loop and unconditionally appends data to a std::vector per-loop iteration. This issue leads to unbounded memory growth and eventually causes the process to run out of memory.
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Subscriptions

Facebook Proxygen
cve-icon MITRE

Status: PUBLISHED

Assigner: Meta

Published:

Updated: 2025-12-03T00:33:57.022Z

Reserved: 2025-08-08T18:21:47.119Z

Link: CVE-2025-55181

cve-icon Vulnrichment

Updated: 2025-12-03T00:33:53.658Z

cve-icon NVD

Status : Analyzed

Published: 2025-12-02T22:16:08.380

Modified: 2025-12-19T18:02:26.070

Link: CVE-2025-55181

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-03T12:09:57Z

Weaknesses