CVE-2026-116581 (GCVE-0-2026-116581)
Vulnerability from cvelistv5
Published
2026-10-26 20:41
Modified
2026-10-26 20:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.6.8, fromJSON and fromCrossJSON do not validate a sequence node's done index. A crafted done index can create an iterator that never finishes when application code consumes it to completion. An unauthenticated request to a service that deserializes untrusted input can therefore block the event loop, exhaust process memory, or make the service unavailable. This issue is fixed in version 1.6.8.
References
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|---|---|---|---|---|---|---|---|---|---|---|---|
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{
"containers": {
"cna": {
"affected": [
{
"product": "seroval",
"vendor": "lxsmnsyc",
"versions": [
{
"status": "affected",
"version": "\u003c 1.6.8"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.6.8, fromJSON and fromCrossJSON do not validate a sequence node\u0027s done index. A crafted done index can create an iterator that never finishes when application code consumes it to completion. An unauthenticated request to a service that deserializes untrusted input can therefore block the event loop, exhaust process memory, or make the service unavailable. This issue is fixed in version 1.6.8."
}
],
"metrics": [
{
"cvssV3_1": {
"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"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-835",
"description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-1284",
"description": "CWE-1284: Improper Validation of Specified Quantity in Input",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-26T20:41:52.905Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-97r2-qh9m-474h",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-97r2-qh9m-474h"
},
{
"name": "https://github.com/lxsmnsyc/seroval/commit/e176f9267e59ddd6c9de89cc9fe85c5b37a5b728",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/lxsmnsyc/seroval/commit/e176f9267e59ddd6c9de89cc9fe85c5b37a5b728"
},
{
"name": "https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.8"
}
],
"source": {
"advisory": "GHSA-97r2-qh9m-474h",
"discovery": "UNKNOWN"
},
"title": "Seroval: fromJSON deserializer trusts sequence doneAt (unauthenticated event-loop DoS)"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-116581",
"datePublished": "2026-10-26T20:41:52.905Z",
"dateReserved": "2026-10-26T15:03:39.035Z",
"dateUpdated": "2026-10-26T20:41:52.905Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-116581\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-31T01:49:19.184494Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-31T01:49:28.309Z\"}}], \"cna\": {\"title\": \"Seroval: fromJSON deserializer trusts sequence doneAt (unauthenticated event-loop DoS)\", \"source\": {\"advisory\": \"GHSA-97r2-qh9m-474h\", \"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\": \"lxsmnsyc\", \"product\": \"seroval\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 1.6.8\"}]}], \"references\": [{\"url\": \"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-97r2-qh9m-474h\", \"name\": \"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-97r2-qh9m-474h\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/lxsmnsyc/seroval/commit/e176f9267e59ddd6c9de89cc9fe85c5b37a5b728\", \"name\": \"https://github.com/lxsmnsyc/seroval/commit/e176f9267e59ddd6c9de89cc9fe85c5b37a5b728\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.8\", \"name\": \"https://github.com/lxsmnsyc/seroval/releases/tag/seroval@1.6.8\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Seroval facilitates JavaScript value stringification, including complex structures beyond JSON.stringify capabilities. Prior to 1.6.8, fromJSON and fromCrossJSON do not validate a sequence node\u0027s done index. A crafted done index can create an iterator that never finishes when application code consumes it to completion. An unauthenticated request to a service that deserializes untrusted input can therefore block the event loop, exhaust process memory, or make the service unavailable. This issue is fixed in version 1.6.8.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-835\", \"description\": \"CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1284\", \"description\": \"CWE-1284: Improper Validation of Specified Quantity in Input\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-10-26T20:41:52.905Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-116581\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-31T01:49:33.208Z\", \"dateReserved\": \"2026-10-26T15:03:39.035Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-10-26T20:41:52.905Z\", \"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 seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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