CVE Explorer
CVE-2026-32696
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
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"nanomq","vendor":"nanomq","versions":[{"status":"affected","version":">= 0.24.6, < 0.24.7"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:d60d0709ce6772bbcde5815fec9790723a6c9ba992dfbbf02fd2e2c862dd4653 · sha256:cb6b4572de4060fa… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:d60d0709ce6772bbcde5815fec9790723a6c9ba992dfbbf02fd2e2c862dd4653 · sha256:cb6b4572de4060fa… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:d60d0709ce6772bbcde5815fec9790723a6c9ba992dfbbf02fd2e2c862dd4653 · sha256:cb6b4572de4060fa… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/nanomq/NanoNNG/commit/c20aa27e5290bb480a5315099952480d35f37a8b","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/NanoNNG/commit/c20aa27e5290bb480a5315099952480d35f37a8b"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d60d0709ce6772bbcde5815fec9790723a6c9ba992dfbbf02fd2e2c862dd4653 · sha256:cb6b4572de4060fa… · /containers/cna/references/2
{"name":"https://github.com/nanomq/NanoNNG/pull/1394","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/NanoNNG/pull/1394"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d60d0709ce6772bbcde5815fec9790723a6c9ba992dfbbf02fd2e2c862dd4653 · sha256:cb6b4572de4060fa… · /containers/cna/references/1
{"name":"https://github.com/nanomq/nanomq/releases/tag/0.24.7","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/nanomq/releases/tag/0.24.7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d60d0709ce6772bbcde5815fec9790723a6c9ba992dfbbf02fd2e2c862dd4653 · sha256:cb6b4572de4060fa… · /containers/cna/references/3
{"name":"https://github.com/nanomq/nanomq/security/advisories/GHSA-77f4-wvq8-mp3p","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-77f4-wvq8-mp3p"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d60d0709ce6772bbcde5815fec9790723a6c9ba992dfbbf02fd2e2c862dd4653 · sha256:cb6b4572de4060fa… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.