135 lines
5.7 KiB
JSON
135 lines
5.7 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-2026-27448",
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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": "2026-02-19T17:25:31.100Z",
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"datePublished": "2026-03-17T23:24:30.661Z",
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"dateUpdated": "2026-03-18T20:18:08.768Z"
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},
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"containers": {
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"cna": {
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"title": "pyOpenSSL allows TLS connection bypass via unhandled callback exception in set_tlsext_servername_callback",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-636",
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"lang": "en",
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"description": "CWE-636: Not Failing Securely ('Failing Open')",
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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": "HIGH",
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"attackRequirements": "PRESENT",
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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": 1.7,
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"baseSeverity": "LOW",
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"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U",
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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/pyca/pyopenssl/security/advisories/GHSA-vp96-hxj8-p424",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/pyca/pyopenssl/security/advisories/GHSA-vp96-hxj8-p424"
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},
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{
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"name": "https://github.com/pyca/pyopenssl/commit/d41a814759a9fb49584ca8ab3f7295de49a85aa0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/pyca/pyopenssl/commit/d41a814759a9fb49584ca8ab3f7295de49a85aa0"
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},
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{
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"name": "https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst#L27",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst#L27"
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}
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],
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"affected": [
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{
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"vendor": "pyca",
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"product": "pyopenssl",
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"versions": [
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{
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"version": ">= 0.14.0, < 26.0.0",
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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": "2026-03-17T23:24:30.661Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to `set_tlsext_servername_callback` raised an unhandled exception, this would result in a connection being accepted. If a user was relying on this callback for any security-sensitive behavior, this could allow bypassing it. Starting in version 26.0.0, unhandled exceptions now result in rejecting the connection."
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}
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],
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"source": {
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"advisory": "GHSA-vp96-hxj8-p424",
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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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"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": "2026-03-18T20:17:52.492201Z",
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"id": "CVE-2026-27448",
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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": "no"
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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": "2026-03-18T20:18:08.768Z"
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}
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}
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]
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}
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} |