150 lines
6.2 KiB
JSON
150 lines
6.2 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-2026-73253",
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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": "2026-08-11T17:18:01.598Z",
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"datePublished": "2026-08-20T17:41:02.495Z",
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"dateUpdated": "2026-08-20T18:36:17.262Z"
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},
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"containers": {
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"cna": {
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"title": "Mongoose: TLS Hostname Verification Bypass via Overly Permissive Wildcard Matching",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-295",
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"lang": "en",
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"description": "CWE-295: Improper Certificate Validation",
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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": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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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": 9.1,
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"baseSeverity": "CRITICAL",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
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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/cesanta/mongoose/security/advisories/GHSA-jp6g-796f-39vp",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/cesanta/mongoose/security/advisories/GHSA-jp6g-796f-39vp"
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},
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{
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"name": "https://github.com/cesanta/mongoose/pull/3611",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/cesanta/mongoose/pull/3611"
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},
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{
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"name": "https://github.com/cesanta/mongoose/commit/a9df523f76f43a38bd53b4232b9cfd4c16869e71",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/cesanta/mongoose/commit/a9df523f76f43a38bd53b4232b9cfd4c16869e71"
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},
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{
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"name": "https://github.com/cesanta/mongoose/releases/tag/7.22",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/cesanta/mongoose/releases/tag/7.22"
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}
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],
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"affected": [
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{
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"vendor": "cesanta",
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"product": "mongoose",
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"versions": [
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{
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"version": "< 7.22",
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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": "2026-08-20T17:41:02.495Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Mongoose is an embedded web server and network library. Prior to version 7.22, an on-path network attacker with a wildcard certificate for a parent domain can impersonate deeper subdomains to a client using the built-in TLS stack. The mg_tls_verify_cert_san() and mg_tls_verify_cert_cn() functions in src/tls_builtin.c call mg_match(), whose wildcard can cross DNS label boundaries, so a pattern such as *.example.com can match foo.bar.example.com. The resulting hostname verification bypass permits interception and modification of TLS traffic. This issue is fixed in version 7.22."
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}
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],
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"source": {
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"advisory": "GHSA-jp6g-796f-39vp",
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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/cesanta/mongoose/security/advisories/GHSA-jp6g-796f-39vp",
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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": "2026-08-20T18:33:38.834878Z",
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"id": "CVE-2026-73253",
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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": "no"
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},
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{
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"Technical Impact": "total"
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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": "2026-08-20T18:36:17.262Z"
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}
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}
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]
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}
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} |