CVE-2021-31671
Pgsync Contains Cleartext Transmission of Sensitive Information
pgsync before 0.6.7 is affected by Information Disclosure of sensitive information. Syncing the schema with the --schema-first and --schema-only options is mishandled. For example, the sslmode connection parameter may be lost, which means that SSL would not be used.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
pgsync before 0.6.7 is affected by Information Disclosure of sensitive information. Syncing the schema with the --schema-first and --schema-only options is mishandled. For example, the sslmode connection parameter may be lost, which means that SSL would not be used.
- Record
CVE-2021-31671- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
CVE List No score
pgsync before 0.6.7 is affected by Information Disclosure of sensitive information. Syncing the schema with the --schema-first and --schema-only options is mishandled. For example, the sslmode connection parameter may be lost, which means that SSL would not be used.
- Record
CVE-2021-31671- Updated
- 2026-11-02
EUVDEUVD-2021-0780 No score
pgsync before 0.6.7 is affected by Information Disclosure of sensitive information. Syncing the schema with the --schema-first and --schema-only options is mishandled. For example, the sslmode connection parameter may be lost, which means that SSL would not be used.
- Record
EUVD-2021-0780- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-72rj-36qc-47g7
Pgsync Contains Cleartext Transmission of Sensitive Information
pgsync before 0.6.7 is affected by Information Disclosure of sensitive information. Syncing the schema with the --schema-first and --schema-only options is mishandled. For example, the sslmode connection parameter may be lost, which means that SSL would not be used.
- Record
GHSA-72rj-36qc-47g7- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
OSV
pgsync before 0.6.7 is affected by Information Disclosure of sensitive information. Syncing the schema with the --schema-first and --schema-only options is mishandled. For example, the sslmode connection parameter may be lost, which means that SSL would not be used.
- Record
CVE-2021-31671- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-72rj-36qc-47g7
Pgsync Contains Cleartext Transmission of Sensitive Information
pgsync before 0.6.7 is affected by Information Disclosure of sensitive information. Syncing the schema with the --schema-first and --schema-only options is mishandled. For example, the sslmode connection parameter may be lost, which means that SSL would not be used.
- Record
GHSA-72rj-36qc-47g7- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pgsyncRubyGems |
before 0.6.7 | 0.6.7 |
pgsyncRubyGems |
before 0.6.7, plus listed versions 0.1.00.1.10.2.00.2.10.2.2 Show 29 moreShow less0.2.30.2.40.3.00.3.10.3.20.3.30.3.40.3.50.3.60.3.70.3.80.3.90.4.00.4.10.4.20.4.30.5.00.5.10.5.20.5.30.5.40.5.50.6.00.6.10.6.20.6.30.6.40.6.50.6.6 |
0.6.7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-31671 is a high vulnerability (CVSS 7.5) in Pgsync Project Pgsync, published April 27, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.73%, the 54th percentile. Fixed in pgsync 0.6.7.
References
github.com/ankane/pgsync/issues/121
nvd.nist.gov/vuln/detail/CVE-2021-31671