GridFS data disclosure and deletion via query-operator injection in file IDs
Medium6.1CVE-2026-88023 · Published Sep 11, 2026
### Impact Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB PHP Library can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the identifier passed by an affected application may obtain stored file content beyond the intended target or cause all GridFS file chunks in the affected bucket to be removed, rendering stored file content unreadable. The affected rename operation may also rename a stored file other than the intended target. ### Patches Fixed in 1.21.5 and 2.4.2. ### Workarounds Validate GridFS IDs. ### References https://jira.mongodb.org/browse/PHPLIB-1929
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| mongodb/mongodb Product | >= 1.1.0, < 1.21.5 | 1.21.5 |
| >= 2.0.0, < 2.4.2 | 2.4.2 |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
- Severity from
- GitHub (reviewed advisory)
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All MongoDB| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Sep 11 | MongoDB Server: race condition | High7.7 | 8.3.11+2 more |
| Sep 11 | ### Impact Improper neutralization of special elements in data query logic in... | High7.1 | 5.11.0 |
| Sep 11 | ### Impact Improper neutralization of special elements in data query logic in... | High7.1 | 5.11.0 |
| Sep 11 | ### Impact Improper neutralization of special elements in data query logic in... | High8.4 | 5.11.0 |
| Sep 11 | GridFS data disclosure and deletion via query-operator injection in file IDs | Medium6.1 | 4.5.3 |
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