CVE Explorer

CVE-2026-41650

fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. Prior to version 5.7.0, XMLBuilder does not escape the "-->" sequence in comment content or the "]]>" sequence in CDATA sections when building XML from JavaScript objects. This allows XML injection when user-controlled data flows into comments or CDATA elements, leading to XSS, SOAP injection, or data manipulation. This issue has been patched in version 5.7.0.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:81ec76c6c772a5364f98a3f651fa52dba2617099dd74ca1f1a23f413664d255d

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"fast-xml-parser","vendor":"NaturalIntelligence","versions":[{"status":"affected","version":"< 5.7.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:598dcf363fe0f025d182fbb539c649798389935e1ff397cb3a1fa72ddffc4344 · sha256:3f5c851973636f6c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:598dcf363fe0f025d182fbb539c649798389935e1ff397cb3a1fa72ddffc4344 · sha256:3f5c851973636f6c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-91","description":"CWE-91: XML Injection (aka Blind XPath Injection)","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:598dcf363fe0f025d182fbb539c649798389935e1ff397cb3a1fa72ddffc4344 · sha256:3f5c851973636f6c… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.6.0","tags":["x_refsource_MISC"],"url":"https://github.com/NaturalIntelligence/fast-xml-parser/releases/tag/v5.6.0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:598dcf363fe0f025d182fbb539c649798389935e1ff397cb3a1fa72ddffc4344 · sha256:3f5c851973636f6c… · /containers/cna/references/1

{"tags":["exploit"],"url":"https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:598dcf363fe0f025d182fbb539c649798389935e1ff397cb3a1fa72ddffc4344 · sha256:3f5c851973636f6c… · /containers/adp/0/references/0

{"name":"https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/NaturalIntelligence/fast-xml-parser/security/advisories/GHSA-gh4j-gqv2-49f6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:598dcf363fe0f025d182fbb539c649798389935e1ff397cb3a1fa72ddffc4344 · sha256:3f5c851973636f6c… · /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.

← Back to CVE Explorer