139 lines
5.8 KiB
JSON
139 lines
5.8 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-2026-73256",
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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": "2026-08-20T17:37:54.505Z",
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"dateUpdated": "2026-08-21T21:46:47.832Z"
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},
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"containers": {
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"cna": {
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"title": "Mongoose: HTTP/1.0 detection off-by-one enables request smuggling via chunked TE",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-444",
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"lang": "en",
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"description": "CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')",
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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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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 9.1,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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"version": "3.1"
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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-mgp5-rjrv-h5j3",
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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-mgp5-rjrv-h5j3"
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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": "2026-08-20T17:37:54.505Z"
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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 7.22, a remote unauthenticated attacker can exploit an HTTP/1.0 reverse-proxy deployment by sending a request with Transfer-Encoding: chunked and conflicting framing. The http_cb() function in src/http.c tests hm.proto.len with an impossible greater-than-eight condition even though mg_http_parse() requires an eight-byte protocol string, so is_http_1_0 is never set. Mongoose consequently processes chunked encoding that an HTTP/1.0 proxy can ignore, enabling request smuggling and unauthorized access or state changes. 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-mgp5-rjrv-h5j3",
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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": "2026-08-21T21:10:40.015064Z",
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"id": "CVE-2026-73256",
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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": "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": "2026-08-21T21:46:47.832Z"
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}
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}
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]
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}
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} |