CVE-2026-59870

A flaw was found in js-yaml, a JavaScript YAML YAML Ain't Markup Language parser. An attacker could exploit this by providing a specially crafted YAML ordered-map document. This could lead to excessive CPU consumption, resulting in a denial of service DoS for applications processing the malicious...

Linux Distros Unpatched Vulnerability : CVE-2026-59868

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 before 5.2.0, when merge keys are enabled, js- yaml can spend quadratic CPU time parsing a document...

Inefficient Algorithmic Complexity

Overview js-yaml is a human-friendly data serialization language. Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the merge key handling during YAML parsing, where each mapping in a chain re-enumerates the keys inherited from the previous mapping. An...

@adobe/helix-docx2md (1.9.29), @adobe/helix-importer (>=3.4.141, <=3.4.143) +33 more potentially affected by CVE-2026-59868 +1 more via js-yaml (>=5.0.0, <=5.1.0)

js-yaml NPM version =5.0.0, =3.4.141, =2.2.62, =1.0.8, =0.2.12, =0.2.12, =0.2.12, =0.2.13, =0.2.12, =0.2.16, =0.2.14, =0.2.12, =0.2.17 and more Source cves: CVE-2026-59868, CVE-2026-59869 Source advisory: SNYK:JS-JSYAML-17900092...

02-infrastructure (1.0.0), 02vue_toast_demo (>=1.0.0, <=1.0.4) +21451 more potentially affected by CVE-2026-59869 via js-yaml (>=3.0.0, <=3.14.2)

js-yaml NPM version =3.0.0, =1.0.0, =1.0.4, =5.0.0, =1.0.3, =2.0.0, =0.0.1, =0.0.2 - 23g-base-css 1.0.0 and more Source cves: CVE-2026-59869 Source advisory: SNYK:JS-JSYAML-17900054...

Inefficient Algorithmic Complexity

Overview js-yaml is a human-friendly data serialization language. Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in merge key handling during YAML parsing, where each mapping in a chain re-enumerates the keys inherited from the previous mapping. An attacker...

Inefficient Algorithmic Complexity

Overview org.webjars.npm:js-yaml is a human-friendly data serialization language. Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in merge key handling during YAML parsing, where each mapping in a chain re-enumerates the keys inherited from the previous...

02.aula (1.0.0), 0xrtest (1.0.0) +10472 more potentially affected by CVE-2026-59869 via js-yaml (>=4.0.0, <=4.2.0)

js-yaml NPM version =4.0.0, =0.2.0, =0.0.3, =4.11.0, =0.0.1, =1.1.9, =0.1.23, =0.1.4, =6.1.5, =0.2.0, =0.14.0 and more Source cves: CVE-2026-59869 Source advisory: SNYK:JS-JSYAML-17900054...

@adobe/aem-cli (>=16.21.1, <=16.21.2), @adobe/helix-docx2md (>=1.9.29, <=1.9.30) +49 more potentially affected by CVE-2026-59870 via js-yaml (>=5.0.0, <=5.2.0)

js-yaml NPM version =5.0.0, =16.21.1, =1.9.29, =3.4.141, =7.1.20, =2.2.62, =1.5.3, =1.0.8, =0.0.0-next-20260630092247, =0.0.0-next-20260630092247, =0.0.0-next-20260630092247, =0.0.0-next-20260824173136 and more Source cves: CVE-2026-59870 Source advisory: SNYK:JS-JSYAML-17900063...

Inefficient Algorithmic Complexity

Overview js-yaml is a human-friendly data serialization language. Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the omapTag.addItem function of src/tag/sequence/omap.ts, which performs a linear scan for duplicate keys on every insertion into an ordered...

org.webjars.npm:draft-js (>=0.9.0, <=0.11.7), org.webjars.npm:github-com-marmelab-restful-js (0.9.6) +2 more potentially affected by CVE-2026-59879 via org.webjars.npm:immutable (3.7.6)

org.webjars.npm:immutable MAVEN version 3.7.6 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:immutable and may be impacted: - org.webjars.npm:draft-js =0.9.0, =0.5.5, =0.8.10 - org.webjars.npm:rc-editor-plugin-image 0.0.3 Source cves:...

org.webjars.npm:browser-sync-ui (2.27.11), org.webjars.npm:comunica__core (1.8.0) +12 more potentially affected by CVE-2026-59879 via org.webjars.npm:immutable (4.0.0-rc.12)

org.webjars.npm:immutable MAVEN version 4.0.0-rc.12 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:immutable and may be impacted: - org.webjars.npm:browser-sync-ui 2.27.11 - org.webjars.npm:comunicacore 1.8.0 -...

org.webjars.npm:draft-js (>=0.9.0, <=0.11.7), org.webjars.npm:github-com-marmelab-restful-js (0.9.6) +2 more potentially affected by CVE-2026-59880 via org.webjars.npm:immutable (3.7.6)

org.webjars.npm:immutable MAVEN version 3.7.6 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:immutable and may be impacted: - org.webjars.npm:draft-js =0.9.0, =0.5.5, =0.8.10 - org.webjars.npm:rc-editor-plugin-image 0.0.3 Source cves:...

org.webjars.npm:browser-sync-ui (2.27.11), org.webjars.npm:comunica__core (1.8.0) +12 more potentially affected by CVE-2026-59880 via org.webjars.npm:immutable (4.0.0-rc.12)

org.webjars.npm:immutable MAVEN version 4.0.0-rc.12 is affected by a known vulnerability. The following packages have a transitive dependency on org.webjars.npm:immutable and may be impacted: - org.webjars.npm:browser-sync-ui 2.27.11 - org.webjars.npm:comunicacore 1.8.0 -...

CVE-2026-59879

Immutable.js provides many Persistent Immutable data structures. Prior to 4.3.9 and 5.1.8, Listset, ListsetSize, ListsetIn, ListupdateIn, and the functional set, setIn, and updateIn mishandle an index or size in the range 2 30 to 2 31 in setListBounds in src/List.js, causing an empty List to ente...

AZL-92192 CVE-2026-59869 affecting package js-jquery 3.5.0-4

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 before 3.15.0 and from 4.0.0 before 4.3.0, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in...

CVE-2026-59869

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 before 3.15.0 and from 4.0.0 before 4.3.0, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in...

CVE-2026-59870

js-yaml is a JavaScript YAML parser and dumper. Prior to 3.15.1, 4.3.1, and 5.2.1, YAML11SCHEMA support for the !!omap tag in src/tag/sequence/omap.ts uses omapTag.addItem to perform a linear duplicate-key scan on every insertion, causing On^2 CPU consumption when yaml.load parses a crafted...

CVE-2026-59869

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 before 3.15.0 and from 4.0.0 before 4.3.0, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in...

UBUNTU-CVE-2026-59870

js-yaml is a JavaScript YAML parser and dumper. From 5.0.0 before 5.2.1, YAML11SCHEMA support for the !!omap tag in src/tag/sequence/omap.ts uses omapTag.addItem to perform a linear duplicate-key scan on every insertion, causing On^2 CPU consumption when yaml.load parses a crafted ordered-map...