Août 2026
12 CVE
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CVE-2026-83497 8.8 Élevée
OpenSearch · Amazon OpenSearch Service
Unrestricted deserialization of untrusted data in the cursor pagination component in the OpenSearch SQL plugin allows a remote authenticated user with basic read/search permissions to execute arbitrary code on the server by sending a crafted cursor parameter to the plugins/sql endpoint.
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CVE-2026-82802 5.3 Moyenne
NASA earthdata-search
A flaw has been found in NASA earthdata-search 1.0.0. Affected by this issue is the function OpenSearchGranuleSearchLambda of the file serverless/src/openSearchGranuleSearch/handler.js of the component granules Endpoint. Executing a manipulation of the argument openSearchOsdd can lead to server-side request forgery. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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CVE-2026-82880 7.5 Élevée
yacy_search_server
YaCy Search Server through 1.941 contains an XML external entity injection vulnerability in SVG, FreeMind, and OpenSearch parsers that fail to disable external entity resolution. Attackers can publish malicious documents with DOCTYPE declarations containing SYSTEM entities pointing to local files, causing the crawler to exfiltrate file contents into the searchable index.
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CVE-2026-77811 8.7 Élevée
AWS Amazon OpenSearch Service · OpenSearch Dashboards dashboards-observability plugin
Improper input validation in the dashboards-observability plugin in OpenSearch Dashboards allows a remote authenticated user with write permissions to OpenSearch Dashboards saved objects to execute arbitrary JavaScript in the context of other users' browser sessions by uploading a saved asset with arbitrary web content.
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CVE-2026-18420 8.8 Élevée
AWS Amazon OpenSearch Service · OpenSearch Dashboards
Improper input validation in the Time Series Visual Builder (TSVB) plugin in OpenSearch Dashboards allows an authenticated remote user to execute arbitrary code on the server via a crafted JSON payload to the metrics visualization API endpoint. This issue is a form of prototype pollution that enables remote code execution. To remediate this issue, users should upgrade to OpenSearch Dashboards 3.8 or later.
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CVE-2026-76211 4.3 Moyenne
thorsten phpMyFAQ · Phpmyfaq phpmyfaq
phpMyFAQ before 4.1.7 fails to properly enforce CONFIGURATION_EDIT permission on admin API read endpoints for LDAP, Elasticsearch, OpenSearch, and dashboard configuration, allowing any authenticated user to access sensitive administrative data. Attackers can retrieve LDAP server topology, bind account names, search bases, index statistics, and site analytics by calling these endpoints with a valid session.
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CVE-2026-19671 6.5 Moyenne
CISAgov Malcolm
Malcolm's upload-processing pipeline (scripts/safe-extract.py) enforces entry-count, nesting-depth, and total-uncompressed-byte limits when extracting container archives (zip/tar/rar/7z via libarchive), but those limits are not applied when the uploaded file is a single-stream compressed format (.gz, .bz2, .xz, .lzma, .lz) that isn't a .tar.*-style archive. Any authenticated user permitted to upload PCAP/log files can upload a small, highly compressible file (e.g. a gzip bomb) that decompresses to an effectively unbounded size on disk, exhausting the shared Docker volume used by OpenSearch, Logstash, Arkime, and Zeek, and disrupting the platform for all users.
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CVE-2026-75897 7.5 Élevée
OpenSearch Dashboards · AWS Amazon OpenSearch Service
Improper input validation in the capabilities route handler in OpenSearch Dashboards - the size of the request payload is not bounded - might allow remote attackers to cause a denial of service via a crafted HTTP request.
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CVE-2026-63178 6.5 Moyenne
onyx-dot-app onyx
Onyx is an open-source AI platform. Prior to 4.3.0, Onyx Enterprise Edition's PATCH /manage/admin/user-group/{user_group_id} and POST /manage/admin/user-group/{user_group_id}/add-users endpoints in ee/onyx/server/user_group/api.py call update_user_group and add_users_to_user_group in ee/onyx/db/user_group.py without enforcing _validate_curator_can_modify_group, allowing a curator to add accounts to arbitrary groups and obtain document access through get_acl_for_user and the OpenSearch access_control_list filter. This issue is fixed in version 4.3.0.
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CVE-2026-18428 8.8 Élevée
AWS Opensearch · Github Opensearch
A SQL query validation bypass in the Flint extension query handler in the OpenSearch SQL plugin allows a remote authenticated actor with async query access to execute arbitrary code on Apache Spark workers by sending a crafted SQL query to the direct query endpoint.
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CVE-2026-19311 8.1 Élevée
AWS OpenSearch · Github OpenSearch
Missing authorization in the Execute Monitor API in Amazon OpenSearch Alerting plugin might allow an authenticated remote user to read, modify, or delete arbitrary index data via a crafted inline monitor request with unintentional data source and input index parameters.
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CVE-2026-18952 8.1 Élevée
AWS Opensearch · Github Opensearch
Missing input validation in the threat intelligence feed parser in the OpenSearch Security Analytics plugin might allow an authenticated remote user to perform server-side request forgery and read local files via a crafted URL parameter to the threat intel source configuration endpoint.