CVE-2026-32696
- Source
- https://cve.org/CVERecord?id=CVE-2026-32696
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32696.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-32696
- Aliases
-
- GHSA-77f4-wvq8-mp3p
- Published
- 2026-03-30T20:11:30Z
- Modified
- 2026-10-28T10:54:57Z
- Severity
-
- 3.1 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- NanoMQ HTTP Auth: Missing username/password can trigger a NULL-pointer strlen() in auth_http.c:set_data(), causing a process crash — SIGSEGV, remotely triggerable
- Details
-
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In NanoMQ version 0.24.6, after enabling auth.http_auth (HTTP authentication), when a client connects to the broker using MQTT CONNECT without providing username/password, and the configuration params uses the placeholders %u / %P (e.g., username="%u", password="%P"), the HTTP request construction phase enters auth_http.c:set_data(). This results in calling strlen() on a NULL pointer, causing a SIGSEGV crash. This crash can be triggered remotely, resulting in a denial of service. This issue has been patched in version 0.24.7.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-476" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32696.json" }- References
-
- https://github.com/nanomq/nanomq/releases/tag/0.24.7
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32696.json
- https://github.com/nanomq/nanomq/security/advisories/GHSA-77f4-wvq8-mp3p
- https://nvd.nist.gov/vuln/detail/CVE-2026-32696
- https://github.com/nanomq/NanoNNG/commit/c20aa27e5290bb480a5315099952480d35f37a8b
- https://github.com/nanomq/NanoNNG/pull/1394
Affected packages
Git / github.com/nanomq/nanomq
Affected ranges
- Type
- GIT
- Repo
- https://github.com/nanomq/nanomq
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:emqx:nanomq:*:*:*:*:*:*:*:*", "range": [ { "introduced": "0" }, { "fixed": "0.24.7" } ], "source": "CPE_RANGE" }, { "original_tag": "0.24.7", "range": [ { "fixed": "53afcd687801f3efefb8b333c2a9200ed1a35979" } ], "source": "REFERENCES_TAG" } ] }
- Type
- GIT
- Repo
- https://github.com/nanomq/nanonng
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0.24.6" }, { "fixed": "0.24.7" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "c20aa27e5290bb480a5315099952480d35f37a8b" } ], "source": "REFERENCES_COMMIT" } ] }
Affected versions
0.*
0.0.1
0.0.2
0.0.3
0.1.0
0.10.1
0.10.5
0.10.8
0.11.0
0.11.2
0.11.3
0.11.5
0.11.8
0.11.82
0.12.0
0.12.1
0.12.2
0.12.5
0.13.0
0.13.6
0.13.8
0.14.0
0.14.1
0.14.5
0.14.8
0.15.0
0.15.1
0.15.2
0.15.3
0.15.5
0.16.0
0.16.2
0.16.3
0.16.5
0.17.2
0.17.5
0.17.8
0.18.1
0.18.2
0.19.0
0.19.1
0.19.5
0.2.0
0.2.1
0.2.2
0.2.5
0.20.0
0.20.5
0.20.6
0.20.8
0.21
0.21.1
0.21.10
0.21.2
0.21.5
0.21.6
0.21.7
0.21.8
0.21.9
0.22.0
0.22.1
0.22.10
0.22.2
0.22.3
0.22.6
0.22.7
0.22.8
0.23.0
0.23.1
0.23.10
0.23.2
0.23.3
0.23.4
0.23.5
0.23.6
0.23.7
0.23.7-11
0.23.8
0.23.9
0.24.0
0.24.1
0.24.2
0.24.3
0.24.3-5
0.24.4
0.24.5
0.24.6
0.3.0
0.3.2
0.3.3
0.3.4
0.3.5
0.3.8
0.4.0
0.4.1
0.4.2
0.4.3
0.4.5
0.4.8
0.5.0
0.5.2
0.5.5
0.5.8
0.5.9
0.6.0
0.6.2
0.6.3
0.6.4
0.6.7rc
0.6.8
0.7.0
0.7.2
0.7.3
0.7.4
0.7.4rc
0.7.5
0.7.5rc
0.7.8
0.7.9
0.8.0
0.8.3
0.8.5
0.8.6log
0.9.0
0.9.2
0.9.5
0.9.7
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32696.json"
vanir_signatures
[
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},
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"signature_version": "v1",
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"target": {
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},
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},
"id": "CVE-2026-32696-cfa63009",
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"source": "https://github.com/nanomq/nanonng/commit/c20aa27e5290bb480a5315099952480d35f37a8b",
"target": {
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},
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"digest": {
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},
"id": "CVE-2026-32696-d5c74dd9",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/nanomq/nanonng/commit/89ac265ec2be8397aec05b383f03aad67189060e",
"target": {
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},
{
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"digest": {
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},
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"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/nanomq/nanonng/commit/89ac265ec2be8397aec05b383f03aad67189060e",
"target": {
"file": "src/sp/transport/mqttws/nmq_websocket.c",
"function": "wstran_pipe_send_cb"
}
}
]
vanir_signatures_modified
"2026-10-28T10:54:57Z"