169 lines
7.7 KiB
JSON
169 lines
7.7 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-2026-72761",
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"assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
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"state": "PUBLISHED",
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"assignerShortName": "CIRCL",
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"dateReserved": "2026-08-10T14:32:19.844Z",
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"datePublished": "2026-08-10T14:33:13.106Z",
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"dateUpdated": "2026-08-10T17:00:48.661Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"product": "vulnerability-lookup",
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"repo": "https://github.com/vulnerability-lookup/vulnerability-lookup",
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"vendor": "vulnerability-lookup",
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"versions": [
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{
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"lessThanOrEqual": "5.5.0",
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"status": "unaffected",
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"version": "0",
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"versionType": "semver"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "tonghuaroot"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Cedric Bonhomme"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "The webhook URL validator in `website/notifications/webhooks.py` uses<br>`ip.is_global` to reject non-public addresses after DNS resolution. IPv6<br>transition addresses (NAT64 `64:ff9b::/96`, 6to4 `2002::/16`, Teredo<br>`2001:0000::/32`) are classified as globally routable by IANA, so `is_global`<br>returns `True` even when the embedded IPv4 targets a private, loopback, or<br>cloud metadata destination. An attacker can register a webhook pointing at a<br>hostname that resolves to a transition address to bypass the SSRF guard and<br>exfiltrate vulnerability data to an internal endpoint.<br><br><div>The vulnerability was introduced on a non-release version. The fix was already done on HEAD. It only affects</div><div>organisation running the HEAD.</div><br>"
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}
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],
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"value": "The webhook URL validator in `website/notifications/webhooks.py` uses\n`ip.is_global` to reject non-public addresses after DNS resolution. IPv6\ntransition addresses (NAT64 `64:ff9b::/96`, 6to4 `2002::/16`, Teredo\n`2001:0000::/32`) are classified as globally routable by IANA, so `is_global`\nreturns `True` even when the embedded IPv4 targets a private, loopback, or\ncloud metadata destination. An attacker can register a webhook pointing at a\nhostname that resolves to a transition address to bypass the SSRF guard and\nexfiltrate vulnerability data to an internal endpoint.\n\nThe vulnerability was introduced on a non-release version. The fix was already done on HEAD. It only affects\n\norganisation running the HEAD."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-664",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-664 Server Side Request Forgery"
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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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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "NETWORK",
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"baseScore": 6.9,
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"baseSeverity": "MEDIUM",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "LOW",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "NONE",
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"vulnConfidentialityImpact": "LOW",
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"vulnIntegrityImpact": "NONE",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-918",
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"description": "CWE-918 Server-Side Request Forgery (SSRF)",
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"lang": "en",
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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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"providerMetadata": {
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"orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
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"shortName": "CIRCL",
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"dateUpdated": "2026-08-10T14:33:13.106Z"
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},
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"references": [
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/vulnerability-lookup/vulnerability-lookup/commit/f3e0c6899c5b3823dcfd860fc6cb3edbedc9bf65"
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"title": "Webhook SSRF guard bypassed by IPv6 transition addresses (NAT64/6to4/Teredo pass is_global check) in vulnerability-lookup",
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"x_generator": {
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"engine": "Vulnogram 0.2.0"
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}
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},
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"adp": [
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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": "2026-08-10T17:00:38.181767Z",
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"id": "CVE-2026-72761",
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"options": [
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{
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"Exploitation": "none"
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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": "2026-08-10T17:00:48.661Z"
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}
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}
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]
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}
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} |