126 lines
5.2 KiB
JSON
126 lines
5.2 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-2026-34830",
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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": "2026-03-30T20:52:53.284Z",
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"datePublished": "2026-04-02T16:47:40.490Z",
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"dateUpdated": "2026-04-02T18:59:46.589Z"
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},
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"containers": {
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"cna": {
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"title": "Rack: Rack::Sendfile regex injection via HTTP_X_ACCEL_MAPPING header allows arbitrary file reads through nginx",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-625",
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"lang": "en",
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"description": "CWE-625: Permissive Regular Expression",
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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": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 5.9,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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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:H/PR:N/UI:N/S:U/C:H/I:N/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/rack/rack/security/advisories/GHSA-qv7j-4883-hwh7",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/rack/rack/security/advisories/GHSA-qv7j-4883-hwh7"
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}
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],
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"affected": [
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{
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"vendor": "rack",
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"product": "rack",
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"versions": [
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{
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"version": "< 2.2.23",
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"status": "affected"
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},
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{
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"version": ">= 3.0.0.beta1, < 3.1.21",
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"status": "affected"
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},
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{
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"version": ">= 3.2.0, < 3.2.6",
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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": "2026-04-02T16:47:40.490Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Sendfile#map_accel_path interpolates the value of the X-Accel-Mapping request header directly into a regular expression when rewriting file paths for X-Accel-Redirect. Because the header value is not escaped, an attacker who can supply X-Accel-Mapping to the backend can inject regex metacharacters and control the generated X-Accel-Redirect response header. In deployments using Rack::Sendfile with x-accel-redirect, this can allow an attacker to cause nginx to serve unintended files from configured internal locations. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6."
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}
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],
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"source": {
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"advisory": "GHSA-qv7j-4883-hwh7",
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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": "2026-04-02T18:59:36.006369Z",
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"id": "CVE-2026-34830",
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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": "2026-04-02T18:59:46.589Z"
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}
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}
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]
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}
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} |