CVE-2026-96883
Type confusion in AWS pgcollection allows remote code execution
CVE-2026-96883 is a high vulnerability (CVSS 8.7) in Aws Pgcollection, published September 24, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.65%, the 51st percentile. No source names a fixed version.
pgcollection is an open source extension to PostgreSQL. A type confusion issue in AWS pgcollection 2.0.0 through 2.1.1 might allow an authenticated remote user to execute arbitrary code as the postgres operating system user via crafted SQL statements that rely on mismatched type metadata in collection value retrieval and array conversion functions.
To remediate this issue, users should upgrade to version 2.1.2 or later.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Type confusion in AWS pgcollection allows remote code execution
pgcollection is an open source extension to PostgreSQL. A type confusion issue in AWS pgcollection 2.0.0 through 2.1.1 might allow an authenticated remote user to execute arbitrary code as the postgres operating system user via crafted SQL statements that rely on mismatched type metadata in collection value retrieval and array conversion functions.
To remediate this issue, users should upgrade to version 2.1.2 or later.
- Record
CVE-2026-96883- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-843
- Updated
- 2026-11-02
EUVDEUVD-2026-86406
pgcollection is an open source extension to PostgreSQL. A type confusion issue in AWS pgcollection 2.0.0 through 2.1.1 might allow an authenticated remote user to execute arbitrary code as the postgres operating system user via crafted SQL statements that rely on mismatched type metadata in collection value retrieval and array conversion functions.
To remediate this issue, users should upgrade to version 2.1.2 or later.
- Record
EUVD-2026-86406- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
NVD
pgcollection is an open source extension to PostgreSQL. A type confusion issue in AWS pgcollection 2.0.0 through 2.1.1 might allow an authenticated remote user to execute arbitrary code as the postgres operating system user via crafted SQL statements that rely on mismatched type metadata in collection value retrieval and array conversion functions.
To remediate this issue, users should upgrade to version 2.1.2 or later.
- Record
CVE-2026-96883- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-843
- Updated
- 2026-11-02
OSV
Type confusion in AWS pgcollection allows remote code execution
pgcollection is an open source extension to PostgreSQL. A type confusion issue in AWS pgcollection 2.0.0 through 2.1.1 might allow an authenticated remote user to execute arbitrary code as the postgres operating system user via crafted SQL statements that rely on mismatched type metadata in collection value retrieval and array conversion functions.
To remediate this issue, users should upgrade to version 2.1.2 or later.
- Record
CVE-2026-96883- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-843
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-96883
pgcollection is an open source extension to PostgreSQL. A type confusion issue in AWS pgcollection 2.0.0 through 2.1.1 might allow an authenticated remote user to execute arbitrary code as the postgres operating system user via crafted SQL statements that rely on mismatched type metadata in collection value retrieval and array conversion functions. To remediate this issue, users should upgrade to version 2.1.2 or later.
- Record
UBUNTU-CVE-2026-96883- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
postgresql-9.3Ubuntu:Pro:14.04:LTS |
All versions, plus listed versions 9.3.1-19.3.2-19.3.2-1ubuntu19.3.2-1ubuntu29.3.3-1 Show 24 moreShow less9.3.3-1bzr19.3.3-1bzr29.3.4-19.3.5-0ubuntu0.14.04.19.3.6-0ubuntu0.14.049.3.7-0ubuntu0.14.049.3.8-0ubuntu0.4.049.3.9-0ubuntu0.14.049.3.10-0ubuntu0.14.049.3.11-0ubuntu0.14.049.3.12-0ubuntu0.14.049.3.13-0ubuntu0.14.049.3.14-0ubuntu0.14.049.3.15-0ubuntu0.14.049.3.16-0ubuntu0.14.049.3.17-0ubuntu0.14.049.3.18-0ubuntu0.14.04.19.3.19-0ubuntu0.14.049.3.20-0ubuntu0.14.049.3.21-0ubuntu0.14.049.3.22-0ubuntu0.14.049.3.23-0ubuntu0.14.049.3.24-0ubuntu0.14.049.3.24-0ubuntu0.14.04+esm1 |
None known |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-02 | created | CVE List, EUVD, NVD, OSV |
References
github.com/aws/pgcollection/releases/tag/v2.1.2
aws.amazon.com/security/security-bulletins/2026-118-aws
nvd.nist.gov/vuln/detail/CVE-2026-96883
ubuntu.com/security/CVE-2026-96883
cve.org/CVERecord?id=CVE-2026-96883