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Vulnerability from bitnami_vulndb
Published
2026-02-16 16:03
Modified
2026-07-06 06:18
Summary
PostgreSQL missing validation of multibyte character length executes arbitrary code
Details
Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.
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"aliases": [
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],
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"severity": "High"
},
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"id": "BIT-postgresql-2026-2006",
"modified": "2026-07-06T06:18:57.499Z",
"published": "2026-02-16T16:03:41.880Z",
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CVE-2026-2006 (GCVE-0-2026-2006)
Vulnerability from cvelistv5 – Published: 2026-02-12 13:00 – Updated: 2026-06-30 12:07
VLAI
EPSS
VEX
Title
PostgreSQL missing validation of multibyte character length executes arbitrary code
Summary
Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
34 references
Impacted products
27 products
Credits
The PostgreSQL project thanks Paul Gerste and Moritz Sanft, as part of zeroday.cloud, for reporting this problem.
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"value": "RHSA-2026:4075: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
},
{
"lang": "en",
"value": "RHSA-2026:4074: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
},
{
"lang": "en",
"value": "RHSA-2026:4515: Red Hat Enterprise Linux AppStream E4S (v.8.8)"
},
{
"lang": "en",
"value": "RHSA-2026:4518: Red Hat Enterprise Linux AppStream E4S (v.9.0)"
},
{
"lang": "en",
"value": "RHSA-2026:4254: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
},
{
"lang": "en",
"value": "RHSA-2026:4475: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
},
{
"lang": "en",
"value": "RHSA-2026:4548: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:4544: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:4524: Red Hat CodeReady Linux Builder EUS (v.9.4), Red Hat Enterprise Linux AppStream EUS (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:4546: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:4547: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:4528: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:3896: Red Hat Enterprise Linux AppStream (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:4110: Red Hat Enterprise Linux AppStream (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:3730: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:8756: Red Hat Hardened Images"
},
{
"lang": "en",
"value": "RHSA-2026:4943: Red Hat Update Infrastructure 5"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-12T14:01:27.485Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-02-12T13:00:10.490Z",
"value": "Made public."
}
],
"title": "postgresql: PostgreSQL missing validation of multibyte character length executes arbitrary code",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."
}
],
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "PostgreSQL",
"vendor": "n/a",
"versions": [
{
"lessThan": "18.2",
"status": "affected",
"version": "18",
"versionType": "rpm"
},
{
"lessThan": "17.8",
"status": "affected",
"version": "17",
"versionType": "rpm"
},
{
"lessThan": "16.12",
"status": "affected",
"version": "16",
"versionType": "rpm"
},
{
"lessThan": "15.16",
"status": "affected",
"version": "15",
"versionType": "rpm"
},
{
"lessThan": "14.21",
"status": "affected",
"version": "0",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "The PostgreSQL project thanks Paul Gerste and Moritz Sanft, as part of zeroday.cloud, for reporting this problem."
}
],
"descriptions": [
{
"lang": "en",
"value": "Missing validation of multibyte character length in PostgreSQL text manipulation allows a database user to issue crafted queries that achieve a buffer overrun. That suffices to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-129",
"description": "Improper Validation of Array Index",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-12T13:00:10.490Z",
"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"shortName": "PostgreSQL"
},
"references": [
{
"url": "https://www.postgresql.org/support/security/CVE-2026-2006/"
}
],
"title": "PostgreSQL missing validation of multibyte character length executes arbitrary code"
}
},
"cveMetadata": {
"assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"assignerShortName": "PostgreSQL",
"cveId": "CVE-2026-2006",
"datePublished": "2026-02-12T13:00:10.490Z",
"dateReserved": "2026-02-05T18:17:56.273Z",
"dateUpdated": "2026-06-30T12:07:03.055Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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