CVE-2026-90797
Apache CouchDB: Pre-authentication gzip decompression bomb via POST /_session
No known exploitation. EPSS puts it in the 51st percentile. Fixed in 3.5.3.
What to do
Find your product and version, then upgrade to the build on the right.
- Apache Software Foundation Apache CouchDBAffected: < 3.5.3Upgrade to: 3.5.3Stated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.7% chance of exploitation activity in the next 30 days, which ranks it in the 51st percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
3 events over 0 days, from the signal feeds we watch.
- Publishedweakness classified, record updated
Affected products
Technical detail
Weaknesses
Sources
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