CVE-2026-50738 (GCVE-0-2026-50738)
Vulnerability from cvelistv5
Published
2026-07-28 17:55
Modified
2026-07-28 18:46
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| EnterpriseDB | pglogical |
Version: 2 ≤ |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-50738",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-28T18:44:48.974347Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-28T18:46:25.423Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "affected",
"product": "pglogical",
"vendor": "EnterpriseDB",
"versions": [
{
"lessThan": "2.4.8",
"status": "affected",
"version": "2",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Mehmet Ince (@mdisec)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A use-after-free condition exists in pglogical\u0027s 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."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"privilegesRequired": "LOW",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-28T17:55:58.209Z",
"orgId": "20be33e2-bf35-4d13-8fad-18bd2f3e3659",
"shortName": "EDB"
},
"references": [
{
"url": "https://www.enterprisedb.com/docs/security/advisories/cve202650738/"
}
],
"source": {
"discovery": "EXTERNAL"
}
}
},
"cveMetadata": {
"assignerOrgId": "20be33e2-bf35-4d13-8fad-18bd2f3e3659",
"assignerShortName": "EDB",
"cveId": "CVE-2026-50738",
"datePublished": "2026-07-28T17:55:58.209Z",
"dateReserved": "2026-06-05T19:13:51.103Z",
"dateUpdated": "2026-07-28T18:46:25.423Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"20be33e2-bf35-4d13-8fad-18bd2f3e3659\", \"shortName\": \"EDB\", \"dateUpdated\": \"2026-07-28T17:55:58.209Z\"}, \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\", \"type\": \"CWE\"}]}], \"affected\": [{\"vendor\": \"EnterpriseDB\", \"product\": \"pglogical\", \"versions\": [{\"version\": \"2\", \"status\": \"affected\", \"lessThan\": \"2.4.8\", \"versionType\": \"semver\"}], \"defaultStatus\": \"affected\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A use-after-free condition exists in pglogical\u0027s 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.\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"version\": \"4.0\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"vulnIntegrityImpact\": \"HIGH\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"baseScore\": 7.7, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\"}}], \"credits\": [{\"lang\": \"en\", \"value\": \"Mehmet Ince (@mdisec)\", \"type\": \"finder\"}], \"source\": {\"discovery\": \"EXTERNAL\"}, \"references\": [{\"url\": \"https://www.enterprisedb.com/docs/security/advisories/cve202650738/\"}]}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-50738\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-28T18:44:48.974347Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-28T18:45:02.674Z\"}}]}",
"cveMetadata": "{\"cveId\": \"CVE-2026-50738\", \"assignerOrgId\": \"20be33e2-bf35-4d13-8fad-18bd2f3e3659\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"EDB\", \"dateReserved\": \"2026-06-05T19:13:51.103Z\", \"datePublished\": \"2026-07-28T17:55:58.209Z\", \"dateUpdated\": \"2026-07-28T18:46:25.423Z\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…