CVE-2026-90797

Description

An unlimited gzip decompression routine in chttpd in Apache CouchDB 3.5.2 and below on all platforms allows any remote client to cause a denial of service via memory exhaustion. Users are recommended to upgrade to version 3.5.3, which fixes this issue.

Is your site exposed to CVE-2026-90797?

Run a free security scan — no signup, results in seconds.

Weakness Type (CWE)

CWE-409 CWE-409

References

Other References

https://lists.apache.org/thread.html/pj83174r8f8f64odf47fwhozbfjtot0f https://lists.apache.org/thread/gsbotof0qn8x6zlpd7t568ny4053jo0n http://www.openwall.com/lists/oss-security/2026/10/20/12

Frequently Asked Questions

What is CVE-2026-90797? +

An unlimited gzip decompression routine in chttpd in Apache CouchDB 3.5.2 and below on all platforms allows any remote client to cause a denial of service via memory exhaustion. Users are recommended to upgrade to version 3.5.3, which fixes this issue.

How do I check if I'm vulnerable to CVE-2026-90797? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-12588

An attacker with access to an HX 10.0.0 and previous versions, may send specially-crafted data to the HX console. The …

CVE-2026-62963

Centrifugo is an open-source scalable real-time messaging server. Prior to 6.8.4, Centrifugo unidirectional WebSocket transport with uni_websocket.compression enabled enforced uni_websocket.message_size_limit …

CVE-2025-66019

pypdf is a free and open-source pure-python PDF library. Prior to version 6.4.0, an attacker who uses this vulnerability can …

CVE-2026-77021

Improper handling of highly compressed data (data amplification) in Checkmk <2.5.0p14, <2.4.0p37, <2.3.0p51 and 2.2.0 (EOL) allows an attacker who …

CVE-2026-48594

Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-tesla tesla allows a denial of service via decompression bomb …

CVE-2026-94637

Improper handling of highly compressed data (data amplification) vulnerability in Apache Thrift Go bindings. This issue affects Apache Thrift: before …