CVE-2026-32141 (GCVE-0-2026-32141)

Vulnerability from cvelistv5 – Published: 2026-03-12 18:08 – Updated: 2026-07-02 12:05
VLAI?
Title
flatted: Unbounded recursion DoS in parse() revive phase
Summary
flatted is a circular JSON parser. Prior to 3.4.0, flatted's parse() function uses a recursive revive() phase to resolve circular references in deserialized JSON. When given a crafted payload with deeply nested or self-referential $ indices, the recursion depth is unbounded, causing a stack overflow that crashes the Node.js process. This vulnerability is fixed in 3.4.0.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
WebReflection flatted Affected: < 3.4.0
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\"RHSA-2026:13826: Red Hat Developer Hub 1.9\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:5807: Red Hat OpenShift AI 2.16\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:21772: Red Hat OpenShift Dev Spaces 3.28\"}], \"x_adpType\": \"supplier\", \"datePublic\": \"2026-03-12T18:08:09.634Z\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2026-32141\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2447083\", \"name\": \"RHBZ#2447083\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32141.json\", \"tags\": [\"x_sadp-csaf-vex\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:34342\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:9742\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:13826\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:5807\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:21772\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.\"}], \"x_generator\": {\"engine\": \"sadp-cli 1.0.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A denial of service flaw has been discovered in the flatted npm library. flatted\u0027s parse() function uses a recursive revive() phase to resolve circular references in deserialized JSON. When given a crafted payload with deeply nested or self-referential $ indices, the recursion depth is unbounded, causing a stack overflow that crashes the Node.js process.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-770\", \"description\": \"Allocation of Resources Without Limits or Throttling\"}]}], \"providerMetadata\": {\"orgId\": \"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\", \"shortName\": \"redhat-SADP\", \"dateUpdated\": \"2026-07-02T12:05:19.661Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-32141\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-13T16:20:15.479714Z\"}}}], \"references\": [{\"url\": \"https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65f\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-13T16:20:10.284Z\"}}], \"cna\": {\"title\": \"flatted: Unbounded recursion DoS in parse() revive phase\", \"source\": {\"advisory\": \"GHSA-25h7-pfq9-p65f\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"WebReflection\", \"product\": \"flatted\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 3.4.0\"}]}], \"references\": [{\"url\": \"https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65f\", \"name\": \"https://github.com/WebReflection/flatted/security/advisories/GHSA-25h7-pfq9-p65f\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/WebReflection/flatted/pull/88\", \"name\": \"https://github.com/WebReflection/flatted/pull/88\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/WebReflection/flatted/commit/7eb65d857e1a40de11c47461cdbc8541449f0606\", \"name\": \"https://github.com/WebReflection/flatted/commit/7eb65d857e1a40de11c47461cdbc8541449f0606\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"flatted is a circular JSON parser. Prior to 3.4.0, flatted\u0027s parse() function uses a recursive revive() phase to resolve circular references in deserialized JSON. When given a crafted payload with deeply nested or self-referential $ indices, the recursion depth is unbounded, causing a stack overflow that crashes the Node.js process. This vulnerability is fixed in 3.4.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-674\", \"description\": \"CWE-674: Uncontrolled Recursion\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-03-12T18:08:09.634Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-32141\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-02T12:05:19.661Z\", \"dateReserved\": \"2026-03-10T22:19:36.546Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-03-12T18:08:09.634Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.