CVE Explorer

CVE-2026-29975

lwjson 1.8.1 contains an improper input validation vulnerability in the streaming JSON parser (lwjson_stream.c). The end-of-string detection logic incorrectly identifies escaped quote characters by only checking the immediately preceding character rather than counting consecutive backslashes, causing valid JSON strings ending with an escaped backslash (like "\\") to never terminate parsing. A remote attacker can send well-formed JSON to cause applications using lwjson_stream_parse() to hang inde

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f75b031926329a4d3098f1958325c78cad15398267465cc362a4ffe5ac03e3a6

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-835","description":"CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-835","description":"CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"tags":["exploit"],"url":"https://gist.github.com/dwilliams27/b99fd41be5d6848691797042cbfc1103"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /containers/adp/0/references/0

{"url":"https://gist.github.com/dwilliams27/b99fd41be5d6848691797042cbfc1103"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /containers/cna/references/2

{"url":"https://github.com/MaJerle/lwjson/blob/develop/lwjson/src/lwjson/lwjson_stream.c#L362-L364"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /containers/cna/references/1

{"url":"https://github.com/MaJerle/lwjson/tree/develop"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:97bba9044d16ea82f0e17a5dbe7d3f5a9d9db395a0a3815edf54887df65a92b5 · sha256:4bcc4a278347d9af… · /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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