CVE-2026-1849
- Source
- https://cve.org/CVERecord?id=CVE-2026-1849
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1849.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-1849
- Aliases
- Downstream
UBUNTU (1)
- Published
- 2026-02-10T18:52:52Z
- Modified
- 2026-08-12T15:31:29Z
- Severity
-
- 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Mongod can run out of stack memory when expressions create deeply nested documents
- Details
-
MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive functions because the server does not periodically check the depth of the expression.
- Database specific
{ "cna_assigner": "mongodb", "cwe_ids": [ "CWE-674" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1849.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "8.0" }, { "fixed": "8.0.18" }, { "introduced": "7.0" }, { "fixed": "7.0.29" }, { "introduced": "8.2" }, { "fixed": "8.2.2" } ], "source": "AFFECTED_FIELD" } ] }- References
Affected packages
Git / github.com/mongodb/mongo
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mongodb/mongo
- Events
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "7.0.0" }, { "fixed": "7.0.29" }, { "introduced": "8.0.0" }, { "fixed": "8.0.18" }, { "introduced": "8.2.0" }, { "fixed": "8.2.2" } ], "source": "CPE_RANGE" }
Affected versions
r7.*
r7.0.0
r7.0.1
r7.0.1-rc0
r7.0.10
r7.0.10-rc0
r7.0.11
r7.0.11-rc0
r7.0.11-rc1
r7.0.11-rc2
r7.0.12
r7.0.12-rc0
r7.0.12-rc1
r7.0.13
r7.0.13-rc0
r7.0.13-rc1
r7.0.14
r7.0.14-rc0
r7.0.15
r7.0.15-rc0
r7.0.15-rc1
r7.0.16
r7.0.16-rc0
r7.0.16-rc1
r7.0.17
r7.0.18
r7.0.2
r7.0.2-rc0
r7.0.2-rc1
r7.0.2-rc2
r7.0.21
r7.0.21-alpha0
r7.0.21-rc0
r7.0.22
r7.0.22-rc0
r7.0.23
r7.0.23-rc0
r7.0.23-rc1
r7.0.24
r7.0.24-rc0
r7.0.25-alpha0
r7.0.26
r7.0.26-rc0
r7.0.27-alpha0
r7.0.28
r7.0.3
r7.0.3-rc0
r7.0.3-rc1
r7.0.4
r7.0.4-rc0
r7.0.5
r7.0.5-rc0
r7.0.6
r7.0.6-rc0
r7.0.7
r7.0.7-rc0
r7.0.7-rc1
r7.0.7-rc2
r7.0.8
r7.0.8-rc0
r7.0.9
r7.0.9-rc0
r7.0.9-rc1
r8.*
r8.0.0
r8.0.1
r8.0.1-rc0
r8.0.10
r8.0.10-rc0
r8.0.12
r8.0.12-rc0
r8.0.13
r8.0.13-rc0
r8.0.13-rc1
r8.0.13-rc2
r8.0.14
r8.0.14-rc0
r8.0.14-rc1
r8.0.16
r8.0.16-rc0
r8.0.16-rc1
r8.0.17
r8.0.17-alpha0
r8.0.2
r8.0.3
r8.0.4
r8.0.4-rc0
r8.0.5
r8.0.5-rc0
r8.0.5-rc1
r8.0.5-rc2
r8.0.6
r8.2.0
r8.2.1
r8.2.1-rc0
r8.2.1-rc1
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1849.json"
vanir_signatures
[
{
"deprecated": false,
"digest": {
"line_hashes": [
"11272611040114298527385613556453291829",
"175117650864466198429070599697755025763",
"259372737161260841017051100781998432651",
"190191220307360414594805946771026217001",
"29054105381567763046288516247318577171",
"80859590129831648960865656848228415255",
"259393610319526121774434945054847506142"
],
"threshold": 0.9
},
"id": "CVE-2026-1849-b3f79aa4",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/mongodb/mongo/commit/b409fb494004bf0f7284059b806b3b751a2ec5d9",
"target": {
"file": "src/mongo/db/service_entry_point_common.cpp"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "59615453827642453525115701432201606392",
"length": 9728
},
"id": "CVE-2026-1849-b50a3bee",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/mongodb/mongo/commit/b409fb494004bf0f7284059b806b3b751a2ec5d9",
"target": {
"file": "src/mongo/db/service_entry_point_common.cpp",
"function": "ExecCommandDatabase::_initiateCommand"
}
}
]
vanir_signatures_modified
"2026-08-12T15:31:29Z"