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10 vulnerabilities found for pglogical by EnterpriseDB
CVE-2026-50738 (GCVE-0-2026-50738)
Vulnerability from nvd – Published: 2026-07-28 17:55 – Updated: 2026-07-28 18:46
VLAI
EPSS
VEX
Summary
A use-after-free condition exists in pglogical's worker signaling code, where a worker structure can be dereferenced after the underlying slot has been freed or recycled during normal worker lifecycle events. The condition is reachable during normal replication operation, including by a low-privileged user able to influence worker start, stop, and restart timing through permitted pglogical operations. In the typical case the condition crashes replication workers, causing an availability impact. In the worst case a use-after-free in a PostgreSQL backend can be leveraged as a remote code execution primitive at the privilege of that backend.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:44 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
2 , < 2.4.8
(semver)
|
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CVE-2026-50737 (GCVE-0-2026-50737)
Vulnerability from nvd – Published: 2026-07-28 17:55 – Updated: 2026-07-28 18:52
VLAI
EPSS
VEX
Summary
When applying replicated changes for a row that is missing one or more columns, pglogical evaluates the affected table's default expressions on the subscriber. Because the apply worker runs at a privilege level equivalent to a PostgreSQL superuser in default installations, any function invoked by such a default expression also runs at that privilege. A party acting as the publisher can use this path to cause functions to be executed on the subscriber as superuser, escalating from a role permitted to use pglogical to full superuser.
This is a second, independent path to the same superuser escalation tracked under CVE-2026-50736 (the pglogical queue issue). To exploit the issue an attacker must be able to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:48 UTC
CWE
- CWE-250 - Execution with Unnecessary Privileges
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
2 , < 2.4.8
(semver)
|
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CVE-2026-50736 (GCVE-0-2026-50736)
Vulnerability from nvd – Published: 2026-07-28 17:55 – Updated: 2026-07-28 18:54
VLAI
EPSS
VEX
Summary
The pglogical queue mechanism, used to convey out-of-band commands such as replicated DDL from a publisher to a subscriber, executes message payloads on the subscriber at the privilege level of the apply worker, which is equivalent to a PostgreSQL superuser in default installations. A party acting as the publisher can send crafted queue messages that cause arbitrary SQL to be executed on the subscriber as superuser, escalating from a role permitted to use pglogical to full superuser and breaking the isolation between tenants in shared deployments. To exploit the issue an attacker must be able to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:54 UTC
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
2 , < 2.4.8
(semver)
|
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CVE-2026-50735 (GCVE-0-2026-50735)
Vulnerability from nvd – Published: 2026-07-28 17:55 – Updated: 2026-07-28 19:02
VLAI
EPSS
VEX
Summary
pglogical's apply worker does not sufficiently validate the length of certain fields in incoming replication protocol messages before copying them, resulting in an out-of-bounds read. A party acting as the publisher for a subscription, for example a non-PostgreSQL endpoint that speaks the pglogical replication protocol, can return crafted messages that cause the subscriber's apply worker to read beyond the bounds of an allocated buffer, disclosing adjacent process memory or crashing the worker. To exploit the issue an attacker must be able to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:58 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
2 , < 2.4.8
(semver)
|
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CVE-2025-2506 (GCVE-0-2025-2506)
Vulnerability from nvd – Published: 2025-05-22 15:22 – Updated: 2025-08-26 19:26
VLAI
EPSS
VEX
Summary
When pglogical attempts to replicate data, it does not verify it is using a replication connection, which means a user with CONNECT access to a database configured for replication can execute the pglogical command to obtain read access to replicated tables. When pglogical runs it should verify it is running on a replication connection but does not perform this check. This vulnerability was introduced in the pglogical 3.x codebase, which is proprietary to EDB. The same code base has been integrated into BDR/PGD 4 and 5.
To exploit the vulnerability the attacker needs at least CONNECT permissions to a database configured for replication and must understand a number of pglogical3/BDR specific commands and be able to decode the binary protocol.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-22 15:28 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
3 , < 3.7.26-ELS
(custom)
|
|
| EnterpriseDB | BDR/PGD |
Affected:
4 , < 4.3.8-ELS
(custom)
|
|
| EnterpriseDB | BDR/PGD |
Affected:
5 , < 5.8.0
(custom)
|
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CVE-2026-50738 (GCVE-0-2026-50738)
Vulnerability from cvelistv5 – Published: 2026-07-28 17:55 – Updated: 2026-07-28 18:46
VLAI
EPSS
VEX
Summary
A use-after-free condition exists in pglogical's worker signaling code, where a worker structure can be dereferenced after the underlying slot has been freed or recycled during normal worker lifecycle events. The condition is reachable during normal replication operation, including by a low-privileged user able to influence worker start, stop, and restart timing through permitted pglogical operations. In the typical case the condition crashes replication workers, causing an availability impact. In the worst case a use-after-free in a PostgreSQL backend can be leveraged as a remote code execution primitive at the privilege of that backend.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:44 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
2 , < 2.4.8
(semver)
|
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CVE-2026-50737 (GCVE-0-2026-50737)
Vulnerability from cvelistv5 – Published: 2026-07-28 17:55 – Updated: 2026-07-28 18:52
VLAI
EPSS
VEX
Summary
When applying replicated changes for a row that is missing one or more columns, pglogical evaluates the affected table's default expressions on the subscriber. Because the apply worker runs at a privilege level equivalent to a PostgreSQL superuser in default installations, any function invoked by such a default expression also runs at that privilege. A party acting as the publisher can use this path to cause functions to be executed on the subscriber as superuser, escalating from a role permitted to use pglogical to full superuser.
This is a second, independent path to the same superuser escalation tracked under CVE-2026-50736 (the pglogical queue issue). To exploit the issue an attacker must be able to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:48 UTC
CWE
- CWE-250 - Execution with Unnecessary Privileges
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
2 , < 2.4.8
(semver)
|
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CVE-2026-50736 (GCVE-0-2026-50736)
Vulnerability from cvelistv5 – Published: 2026-07-28 17:55 – Updated: 2026-07-28 18:54
VLAI
EPSS
VEX
Summary
The pglogical queue mechanism, used to convey out-of-band commands such as replicated DDL from a publisher to a subscriber, executes message payloads on the subscriber at the privilege level of the apply worker, which is equivalent to a PostgreSQL superuser in default installations. A party acting as the publisher can send crafted queue messages that cause arbitrary SQL to be executed on the subscriber as superuser, escalating from a role permitted to use pglogical to full superuser and breaking the isolation between tenants in shared deployments. To exploit the issue an attacker must be able to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:54 UTC
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
2 , < 2.4.8
(semver)
|
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CVE-2026-50735 (GCVE-0-2026-50735)
Vulnerability from cvelistv5 – Published: 2026-07-28 17:55 – Updated: 2026-07-28 19:02
VLAI
EPSS
VEX
Summary
pglogical's apply worker does not sufficiently validate the length of certain fields in incoming replication protocol messages before copying them, resulting in an out-of-bounds read. A party acting as the publisher for a subscription, for example a non-PostgreSQL endpoint that speaks the pglogical replication protocol, can return crafted messages that cause the subscriber's apply worker to read beyond the bounds of an allocated buffer, disclosing adjacent process memory or crashing the worker. To exploit the issue an attacker must be able to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:58 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
2 , < 2.4.8
(semver)
|
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CVE-2025-2506 (GCVE-0-2025-2506)
Vulnerability from cvelistv5 – Published: 2025-05-22 15:22 – Updated: 2025-08-26 19:26
VLAI
EPSS
VEX
Summary
When pglogical attempts to replicate data, it does not verify it is using a replication connection, which means a user with CONNECT access to a database configured for replication can execute the pglogical command to obtain read access to replicated tables. When pglogical runs it should verify it is running on a replication connection but does not perform this check. This vulnerability was introduced in the pglogical 3.x codebase, which is proprietary to EDB. The same code base has been integrated into BDR/PGD 4 and 5.
To exploit the vulnerability the attacker needs at least CONNECT permissions to a database configured for replication and must understand a number of pglogical3/BDR specific commands and be able to decode the binary protocol.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-22 15:28 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| EnterpriseDB | pglogical |
Affected:
3 , < 3.7.26-ELS
(custom)
|
|
| EnterpriseDB | BDR/PGD |
Affected:
4 , < 4.3.8-ELS
(custom)
|
|
| EnterpriseDB | BDR/PGD |
Affected:
5 , < 5.8.0
(custom)
|
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"lessThan": "4.3.8-ELS",
"status": "affected",
"version": "4",
"versionType": "custom"
}
]
},
{
"defaultStatus": "affected",
"product": "BDR/PGD",
"vendor": "EnterpriseDB",
"versions": [
{
"lessThan": "5.8.0",
"status": "affected",
"version": "5",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "When pglogical attempts to replicate data, it does not verify it is using a replication connection, which means a user with CONNECT access to a database configured for replication can execute the pglogical command to obtain read access to replicated tables. When pglogical runs it should verify it is running on a replication connection but does not perform this check. This vulnerability was introduced in the pglogical 3.x codebase, which is proprietary to EDB. The same code base has been integrated into BDR/PGD 4 and 5.\nTo exploit the vulnerability the attacker needs at least CONNECT permissions to a database configured for replication and must understand a number of pglogical3/BDR specific commands and be able to decode the binary protocol."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-22T15:22:20.041Z",
"orgId": "20be33e2-bf35-4d13-8fad-18bd2f3e3659",
"shortName": "EDB"
},
"references": [
{
"url": "https://www.enterprisedb.com/docs/security/advisories/cve20252506/"
}
],
"source": {
"discovery": "INTERNAL"
}
}
},
"cveMetadata": {
"assignerOrgId": "20be33e2-bf35-4d13-8fad-18bd2f3e3659",
"assignerShortName": "EDB",
"cveId": "CVE-2025-2506",
"datePublished": "2025-05-22T15:22:20.041Z",
"dateReserved": "2025-03-18T17:44:43.489Z",
"dateUpdated": "2025-08-26T19:26:48.602Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}