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CVE-2026-62349

TDengine is an open source, time-series database optimized for Internet of Things devices. In 3.4.1.6 and earlier, source/libs/parser/src/parUtil.c trimString() checks space for only one byte before processing SQL string escape sequences \%, \_, or \x, allowing a one-byte out-of-bounds write to the stack buffer tmpTokenBuf that can cause denial of service and potentially remote code execution. This issue is fixed in version 3.4.1.14.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e9ebb0d50b6bf0b52ed133c9a2b18731948c8b0de4a52344a5c83c5f226e0385
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:58f5e4a0360f65134381a7d490097cf55cb67c412a85b34ecc509218c15dc8c2 · sha256:249490e9e2f8652e… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:58f5e4a0360f65134381a7d490097cf55cb67c412a85b34ecc509218c15dc8c2 · sha256:249490e9e2f8652e… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"TDengine","vendor":"taosdata","versions":[{"status":"affected","version":"< 3.4.1.14"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:58f5e4a0360f65134381a7d490097cf55cb67c412a85b34ecc509218c15dc8c2 · sha256:249490e9e2f8652e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:58f5e4a0360f65134381a7d490097cf55cb67c412a85b34ecc509218c15dc8c2 · sha256:249490e9e2f8652e… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:58f5e4a0360f65134381a7d490097cf55cb67c412a85b34ecc509218c15dc8c2 · sha256:249490e9e2f8652e… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:58f5e4a0360f65134381a7d490097cf55cb67c412a85b34ecc509218c15dc8c2 · sha256:249490e9e2f8652e… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:58f5e4a0360f65134381a7d490097cf55cb67c412a85b34ecc509218c15dc8c2 · sha256:249490e9e2f8652e… · /containers/adp/0/references/0
{"name":"https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/taosdata/TDengine/security/advisories/GHSA-4v5h-fxjw-vrmq"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:58f5e4a0360f65134381a7d490097cf55cb67c412a85b34ecc509218c15dc8c2 · sha256:249490e9e2f8652e… · /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.

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