CVE-2026-88030: Ruby mongo · Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB Ruby Driver can cause a caller-supplied
Affects ruby-mongoSource GCVE Database
Not known to be exploited · CVSS 8.3 Medium.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu:16.04:LTSruby-mongopkg:deb/ubuntu/ruby-mongo?arch=source&distro=xenialOther threats | Affected
| Fixed in– |
Ubuntu:18.04:LTSruby-mongopkg:deb/ubuntu/ruby-mongo?arch=source&distro=bionicOther threats | Affected
| Fixed in– |
Ubuntu:20.04:LTSruby-mongopkg:deb/ubuntu/ruby-mongo?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Ubuntu:22.04:LTSruby-mongopkg:deb/ubuntu/ruby-mongo?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu:24.04:LTSruby-mongopkg:deb/ubuntu/ruby-mongo?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu:26.10ruby-mongopkg:deb/ubuntu/ruby-mongo?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu:26.04:LTSruby-mongopkg:deb/ubuntu/ruby-mongo?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, applications should carefully validate and sanitize any user-supplied identifiers used in GridFS queries to prevent injection of special query elements.
Description
CVE-2026-88030 is a vulnerability in the GridFS component of the MongoDB Ruby Driver where improper neutralization of special elements in data query logic allows a caller-supplied structured file identifier to be interpreted as a query condition instead of a literal identifier. This can enable an authenticated user who can influence the identifier to access stored file content beyond the intended target or delete all GridFS file chunks in the affected bucket, making stored content unreadable.