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TI-2026-76509 Aliases CVE-2026-112368GHSA-69c3-9c25-6gj9

Unbounded recursion in MongoDB PHP driver BSON decoding

Priority MEDIUM 41CWE-674Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-674.

Summary

MongoDB PHP Driver from 1.0.0 before 1.21.12, from 2.1.0 before 2.1.12, and from 2.5.0 before 2.5.5 is affected. Uncontrolled recursion (CWE-674) in BSON decoding lets an unauthenticated party exhaust the process stack with crafted binary document data. The PHP process using the driver terminates, and application error handling cannot intercept this.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

An uncontrolled recursion weakness in the BSON decoding logic of the MongoDB PHP driver may allow an unauthenticated party who can supply crafted binary document data to the decoder to exhaust the process stack. This may cause the PHP process using the driver to terminate unexpectedly, resulting in a loss of availability for that process. The condition occurs below the PHP layer and cannot be intercepted by application-level error handling.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00263 18th percentileScored 2026-11-07
Fix Fixed PHP Driver (MongoDB Inc.): 1.21.12, 2.1.12, 2.5.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
MongoDBPHP Driver1.0.0 to before 1.21.12; 2.1.0 to before 2.1.12; 2.5.0 to before 2.5.51.21.12, 2.1.12, 2.5.5Patch availableCNA
  • PHP Driver VendorMongoDB Affected 1.0.0 to before 1.21.12; 2.1.0 to before 2.1.12; 2.5.0 to before 2.5.5 Fixed in 1.21.12, 2.1.12, 2.5.5 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:mongodb:php_driver:*:*:*:*:*:*:*:*——MongoDB
  • cpe:2.3:a:mongodb:php_driver:*:*:*:*:*:*:*:* Versions — — ·MongoDB

Remediation

Upgrade the MongoDB PHP Driver to 1.21.12, 2.1.12, or 2.5.5, whichever matches the release line in use.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA PHP Driver (MongoDB Inc.) Fixed in 1.21.12, 2.1.12, 2.5.5

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-19 Threatist record created from CVE-2026-112368
  2. 2026-10-20 Alias added: GHSA-69c3-9c25-6gj9
  3. 2026-10-20 CISA SSVC decision points changed
  4. 2026-10-20 Priority changed: MEDIUM → LOW
  5. 2026-10-21 Priority changed: LOW → MEDIUM
  6. 2026-10-21 Affected versions changed · Red Hat
  7. 2026-10-21 CVSS score added · Red Hat

References

Other 1

  • TI-2019-08023 Code injection in mongo-express KEVCVSS 3.1CRITICAL 9.9
  • TI-2025-13542 Zlib compressed protocol header length confusion may allow memory read KEVCVSS 4.0HIGH 8.7
  • TI-2026-79432 BSON output corruption via out-of-range binary subtype in MongoDB C# Driver CVSS 4.0MEDIUM 6.9
  • TI-2026-79424 NoSQL command injection via mismatched BSON length in MongoDB C# Driver CVSS 4.0MEDIUM 6.9
  • TI-2026-79422 Unbounded memory growth in MongoDB C# Driver BSON deserialization CVSS 4.0HIGH 8.2
  • TI-2026-79427 Authentication bypass via issuer-and-serial-only certificate equality CVSS 4.0HIGH 7.6
See all 376 →

Sources

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