Memory disclosure or worker crash via unchecked lengths
Published Jul 28, 2026 · Updated Jul 28, 2026
Out-of-bounds reads in EnterpriseDB pglogical 2.x before 2.4.8 allow remote attackers to disclose memory or crash an apply worker. The apply worker copies fields from incoming replication messages without first confirming that their declared lengths fit the allocated buffer. Exploitation requires a subscription directed to an attacker-controlled publisher, which normally requires superuser privileges but can reach delegated subscription creators.
Summary
What happened
Out-of-bounds reads in EnterpriseDB pglogical 2.x before 2.4.8 allow remote attackers to disclose memory or crash an apply worker. The apply worker copies fields from incoming replication messages without first confirming that their declared lengths fit the allocated buffer. Exploitation requires a subscription directed to an attacker-controlled publisher, which normally requires superuser privileges but can reach delegated subscription creators.
The record
- CVE
- CVE-2026-50735
- Published
- Jul 28, 2026
- Updated
- Jul 28, 2026
- Vendor
- EnterpriseDB
- Product
- pglogical
- Classifications
- CWE-125, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 28, 2026CVE publishedPublication date reported by the CVE source.
- Jul 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2 <2.4.8
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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