GHSA-8GC5-J5RX-235R fast-xml-parser affected by numeric entity expansion bypassing all entity expansion limits (incomplete fix for CVE-2026-26278)

Summary The fix for CVE-2026-26278 added entity expansion limits maxTotalExpansions, maxExpandedLength, maxEntityCount, maxEntitySize to prevent XML entity expansion Denial of Service. However, these limits are only enforced for DOCTYPE-defined entities. Numeric character references &NNN; and &xH...

@activepieces/piece-amazon-s3 (>=0.5.4, <=0.6.4), @activepieces/piece-amazon-ses (>=0.0.1, <=0.1.4) +1157 more potentially affected by CVE-2026-33036 via fast-xml-parser (>=5.0.1, <=5.5.5)

fast-xml-parser NPM version =5.0.1, =0.5.4, =0.0.1, =0.1.3, =0.5.3, =0.2.1, =13.1.4, =1.0.0, =1.9.12, =1.0.3, =1.1.31, =1.0.0, =1.0.0, =1.7.16, =1.10.0 and more Source cves: CVE-2026-33036 Source advisory: OSV:GHSA-8GC5-J5RX-235R...

XML Entity Expansion

Overview org.webjars.npm:fast-xml-parser is a Validate XML, Parse XML, Build XML without C/C++ based libraries Affected versions of this package are vulnerable to XML Entity Expansion in the replaceEntitiesValue function, which doesn't protect unlimited expansion of numeric entities the way it do...

5-ifc-check-cli (1.0.0), 7ghost (>=4.11.2, <=4.11.46) +4219 more potentially affected by CVE-2026-33036 via fast-xml-parser (>=4.0.0, <=4.5.4)

fast-xml-parser NPM version =4.0.0, =4.11.2, =0.1.1, =0.0.2, =1.0.1, =1.0.0, =1.52.0, =0.0.1, =1.0.0, =0.0.1, =1.1.2 and more Source cves: CVE-2026-33036 Source advisory: OSV:GHSA-8GC5-J5RX-235R...

fast-xml-parser affected by numeric entity expansion bypassing all entity expansion limits (incomplete fix for CVE-2026-26278)

Summary The fix for CVE-2026-26278 added entity expansion limits maxTotalExpansions, maxExpandedLength, maxEntityCount, maxEntitySize to prevent XML entity expansion Denial of Service. However, these limits are only enforced for DOCTYPE-defined entities. Numeric character references &NNN; and &xH...

0xuath-sdk-react (>=0.0.2, <=0.0.23), 1-test-gulp-1 (>=0.0.1, <=0.0.4) +15378 more potentially affected by CVE-2026-26278 +1 more via fast-xml-parser (>=4.0.0, <=5.5.5)

fast-xml-parser NPM version =4.0.0, =0.0.2, =0.0.1, =0.0.1, =1.0.0, =3.1.4, =0.1.0, =3.1.6, =0.1.0, =0.0.2, =4.11.2, =4.11.46 - @0610studio/rn-layout 0.0.1 - @0xflick/jest-dynamodb 4.0.1-pre.2 and more Source cves: CVE-2026-26278, CVE-2026-33036 Source advisory: SNYK:JS-FASTXMLPARSER-15677840...

com.codbex.atlas:codbex-atlas-application (>=2.62.0, <=2.120.0), com.codbex.gaia:codbex-gaia-application (>=2.61.0, <=2.104.0) +25 more potentially affected by CVE-2026-26278 +1 more via org.webjars.npm:fast-xml-parser (>=4.5.3, <=5.8.0)

org.webjars.npm:fast-xml-parser MAVEN version =4.5.3, =2.62.0, =2.61.0, =2.52.0, =2.52.0, =2.51.0, =2.51.0, =3.6.0, =2.50.0, =5.0.0, =5.0.0, =11.58.0, =12.2.0, =11.58.0, =11.58.0, =14.19.0, =14.28.0 and more Source cves: CVE-2026-26278, CVE-2026-33036 Source advisory:...

PT-2026-25995

Name of the Vulnerable Software and Affected Versions fast-xml-parser versions 4.0.0-beta.3 through 5.5.5 Description fast-xml-parser allows users to process XML from JavaScript objects without relying on C/C++ based libraries or callbacks. Versions 4.0.0-beta.3 through 5.5.5 contain a bypass tha...

EulerOS 2.0 SP11 : kernel (EulerOS-SA-2026-1610)

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