136 lines
6.1 KiB
JSON
136 lines
6.1 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-25537",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-02-02T19:59:47.374Z",
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"datePublished": "2026-02-04T21:31:53.511Z",
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"dateUpdated": "2026-02-05T20:52:48.021Z"
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},
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"containers": {
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"cna": {
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"title": "jsonwebtoken has Type Confusion that leads to potential authorization bypass",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-843",
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"lang": "en",
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"description": "CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 5.5,
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/Keats/jsonwebtoken/security/advisories/GHSA-h395-gr6q-cpjc",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/Keats/jsonwebtoken/security/advisories/GHSA-h395-gr6q-cpjc"
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},
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{
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"name": "https://github.com/Keats/jsonwebtoken/commit/abbc3076742c4161347bc6b8bf4aa5eb86e1dc01",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/Keats/jsonwebtoken/commit/abbc3076742c4161347bc6b8bf4aa5eb86e1dc01"
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}
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],
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"affected": [
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{
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"vendor": "Keats",
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"product": "jsonwebtoken",
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"versions": [
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{
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"version": "< 10.3.0",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-02-04T21:31:53.511Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "jsonwebtoken is a JWT lib in rust. Prior to version 10.3.0, there is a Type Confusion vulnerability in jsonwebtoken, specifically, in its claim validation logic. When a standard claim (such as nbf or exp) is provided with an incorrect JSON type (Like a String instead of a Number), the library’s internal parsing mechanism marks the claim as “FailedToParse”. Crucially, the validation logic treats this “FailedToParse” state identically to “NotPresent”. This means that if a check is enabled (like: validate_nbf = true), but the claim is not explicitly marked as required in required_spec_claims, the library will skip the validation check entirely for the malformed claim, treating it as if it were not there. This allows attackers to bypass critical time-based security restrictions (like “Not Before” checks) and commit potential authentication and authorization bypasses. This issue has been patched in version 10.3.0."
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}
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],
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"source": {
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"advisory": "GHSA-h395-gr6q-cpjc",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/Keats/jsonwebtoken/security/advisories/GHSA-h395-gr6q-cpjc",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-02-05T20:52:41.199183Z",
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"id": "CVE-2026-25537",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-02-05T20:52:48.021Z"
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}
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}
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]
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}
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} |