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PostgreSQL

0 mentions in 7 days · 4 in 30 days · 4 total · first seen Sep 1, 2026 · last 11d ago

Timeline4 articles

PostgreSQL Fixes 12-Year-Old Logical Decoding Flaw Enabling Replication-Role Code Execution

PostgreSQL fixed CVE-2026-6471 (CVSS 7.2), a 12-year-old logical decoding flaw letting replication-role accounts execute arbitrary code as the database OS user.

PostgreSQL patched CVE-2026-6471 (CVSS 7.2), a flaw present since logical decoding shipped in 9.4 (2014) that lets an account with the REPLICATION attribute run arbitrary code as the database server's OS user when wal_level is logical. Versions before 18.6, 17.11, 16.15, 15.19, and 14.24 are affected; exploitation requires such an account, which backup, CDC, and monitoring tooling routinely holds. The fix adds an output_plugin_libraries whitelist, so administrators using non-default plugins such as wal2json and decoderbufs must add them and reload configuration after updating. Cyera Research, whose write-up names the flaw PostGREShell, demonstrated escalating a replication user to superuser with persistence; no PoC or KEV entry existed as of September 4.

The Hacker NewsSep 4, 15:20 UTC · 11d agoVulnerability CVE-2026-64711

PostgreSQL Hit by 12-Year-Old Vulnerability Allowing Server Takeover

PostgreSQL flaw CVE-2026-6471, present since 2014, lets low-privilege replication accounts execute code and take over database servers; patches released.

Cyera researchers disclosed PostGREShell (CVE-2026-6471, CVSS 7.2), a missing-authorization bug in PostgreSQL logical decoding that lets users with REPLICATION privilege dlopen arbitrary files and execute code as the server account. The flaw affects PostgreSQL 9.4 through 18 and can yield privilege escalation, permanent superuser access and persistent backdoors on Windows, Linux and macOS. Fixes are available in versions 18.6, 17.11, 16.15, 15.19 and 14.24. Defenders should update and remove unnecessary Replication privileges.

Security AffairsSep 4, 13:41 UTC · 11d agoVulnerability CVE-2026-64711

Decade-old PostgreSQL flaw turns backup account into a backdoor

Cyera disclosed CVE-2026-6471, a decade-old PostgreSQL flaw letting REPLICATION-attribute accounts achieve RCE and superuser compromise, patched August 13.

Cyera Research's 'PostGREShell' flaw exists in PostgreSQL's logical replication output plugin loading, where the replication code path never called the library-path security check, allowing path traversal or UNC paths to load arbitrary code. A low-privilege backup account can achieve code execution on Windows, Linux, and macOS, then escalate to superuser with persistent backdoor access. CVE-2026-6471 affects versions back to PostgreSQL 9.4 (2014) and was patched in releases 18.6, 17.11, 16.15, 15.19, and 14.24 on August 13. CVSS is 7.2, and no exploitation of this specific CVE has been confirmed, though VirusTotal hunting found 114 malicious PostgreSQL plugins.

CSO OnlineSep 3, 11:38 UTC · 12d agoVulnerability CVE-2026-6471

CVE-2026-9586 | Sangoma Switchvox Unauthenticated SQL Injection Remote Code Execution Vulnerability

CVE-2026-9586, a critical unauthenticated SQL injection to RCE in Sangoma Switchvox, is being actively exploited against internet-facing systems per honeypot observations.

CVE-2026-9586 (CVSS 4.0: 9.3) is an unauthenticated SQL injection in the /pa endpoint of Sangoma Switchvox SMB Edition, where the unsanitized PhoneIP value in XML phone notification requests reaches the PostgreSQL database. Horizon3 demonstrated escalation to OS command execution, and honeypots run with Defused Cyber observed exploitation attempts on August 30, 2026, using PostgreSQL commands with nc and curl. Fixed in Switchvox 8.4.0.2 released July 14, 2026; one attacker IP (176.65.148.184) was documented.

Horizon3.aiSep 1, 15:32 UTC · 14d agoExploit / PoC in the wildCVE-2026-9586

Related CVEsby mentions

CVE-2026-64717.2<1%
Missing Authorization in PostgreSQL Logical Decoding Lets REPLICATION Role Run Code
CVE-2026-6471 is a missing-authorization flaw (CWE-862) in PostgreSQL's logical decoding that does not restrict which decoding plugin a replication role may load. An attacker holding a database role with the REPLICATION privilege but without superuser rights can select an arbitrary logical decoding plugin, causing the server to dlopen any file visible to the operating-system account running PostgreSQL and thereby execute arbitrary code as that account. Successful exploitation gives code execution as the PostgreSQL service account (typically the 'postgres' OS user) on the database host, with high impact on confidentiality, integrity, and availability; related reporting indicates the flaw has existed for roughly 12 years and is commonly reached through backup or replication accounts. All deployments on PostgreSQL versions prior to 18.6, 17.11, 16.15, 15.19, and 14.24 are affected where non-superusers have been granted the REPLICATION privilege. No exploitation in the wild, public proof-of-concept, or CISA KEV listing is known; EPSS currently estimates a 0.3% probability of exploitation within the next 30 days.
· PostgreSQL All versions before 18.6 (18.x branch) · PostgreSQL All versions before 17.11 (17.x branch)mass
CVE-2026-95869.312%
Unauthenticated SQL Injection RCE in Sangoma Switchvox SMB Edition
Sangoma Switchvox SMB Edition 8.3 (build 104997) contains an unauthenticated SQL injection flaw (CWE-89) in its /pa endpoint, where the user-controlled PhoneIP value from XML input is concatenated directly into PostgreSQL queries without sanitization or parameterization. A single crafted request lets a remote, unauthenticated attacker execute arbitrary SQL statements against the backend PostgreSQL database, which can be escalated to remote code execution on the server. Any organization running the affected Switchvox SMB Edition build is exposed, especially appliances reachable from the internet. Exploitation is confirmed in the wild: the flaw was added to CISA's KEV catalog on 2026-09-02, and researchers have observed attackers using it without credentials to deploy reverse shells and cryptocurrency miners.
· Sangoma Switchvox SMB Edition 8.3 (build 104997) KEV PoC moderate

Appears with

vendor PostgreSQL 3 organization PostgreSQL 2 vendor Cyera 2 organization Cyera 2 organization Security Risk Advisors 1 product Switchvox 1 vendor Defused Cyber 1 vendor Horizon3 1 vendor Sangoma 1 organization Defused Cyber 1 organization Horizon3 1 organization Sangoma 1

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