CVE Watch3 de nov. de 2026

CVE-2026-120684

A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated

CVSS

6.5

Média

EPSS

0.3%

p25

KEV

—

Exploit Today

0-100

Publicado: 3 de nov. de 2026 · Última mod.: 3 de nov. de 2026 · CWE-908

EPSS · 30d

0.3%EPSS · 30 dias0.3%

2026-11-042026-11-07

Descrição técnica

A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated as valid file content and stored on the server. A database user holding ordinary write access to a shared storage area can arrange conditions under which an application later appends to such a file and writes that memory into records the same user is permitted to read, which may result in unintended disclosure of sensitive information from the application's process, including credentials.

Referências oficiais

jira.mongodb.orghttps://jira.mongodb.org/browse/CDRIVER-6508

CVEs relacionados

CVECVSSEPSSKEVRExploitTítuloMod.

CVE-2026-1026647.1 ALT

22.9%

——7ProxySQL is a proxy for MySQL and its forks, as well as PostgreSQL. Prior to 3.0.10, 3.1.10, and 4.0.10, decompress_mysql_payload() in lib/mysql_data_stream.cpp accepts a zlib stream when uncompress() returns Z_OK without checking that the actual output length equals the attacker-controlled payload_length. An authenticated MySQL client that negotiates compression can overstate payload_length, causing buffer2array() to parse the uninitialized tail of a heap buffer as MySQL packet headers and forward stale data to the backend. Backend error responses can disclose prior SQL queries, result data, credentials, or session state, and malformed lengths can also cause excessive allocations. This issue is fixed in versions 3.0.10, 3.1.10, and 4.0.10.3d CVE-2026-121227—

10.2%

——3Uninitialized resource in Skia in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)4d CVE-2026-1212136.5 MÉD

19.2%

——6Uninitialized resource in Images in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)3d CVE-2026-121207—

10.2%

——3Uninitialized resource in Dawn in Google Chrome on on Mac prior to 157.0.8103.38 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)4d CVE-2026-1211766.5 MÉD

15.9%

——5Uninitialized resource in Media in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)3d CVE-2026-121173—

10.2%

——3Uninitialized resource in WebGL in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)4d