TI-2023-03533 Aliases CVE-2023-3782 GHSA-w28c-cgxf-w8gv

Uncontrolled resource consumption in com.squareup.okhttp3:okhttp-brotli

MEDIUM 60CWE-400Published 2023-07-19 · Updated 2024-10-28

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

DoS of the OkHttp client when using a BrotliInterceptor and surfing to a malicious web server, or when an attacker can perform MitM to inject a Brotli zip-bomb into an HTTP response

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00721 54th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	com.squareup.okhttp3:okhttp-brotli	all versions	—	No fix listed	CNA

com.squareup.okhttp3:okhttp-brotli Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:squareup:okhttp-brotli::::::::	all versions	Vulnerable	Squareup

cpe:2.3:a:squareup:okhttp-brotli:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Squareup

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-3782
2026-10-03 Alias added: GHSA-w28c-cgxf-w8gv

References

Exploit 1

https://research.jfrog.com/vulnerabilities/okhttp-client-brotli-dos/

Advisory 1

https://github.com/square/okhttp/issues/7738

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences