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2 vulnerabilities found for Red Hat build of Quarkus 3.27.3.SP2 by Red Hat

CVE-2026-42198 (GCVE-0-2026-42198)

Vulnerability from nvd – Published: 2026-04-29 15:58 – Updated: 2026-08-18 12:05

Title

pgjdbc: Unbounded PBKDF2 iterations in SCRAM authentication allows CPU exhaustion DoS

Summary

pgjdbc is an open source postgresql JDBC Driver. From version 42.2.0 to before version 42.7.11, pgjdbc is vulnerable to a client-side denial of service during SCRAM-SHA-256 authentication. A malicious server can instruct the driver to perform SCRAM authentication with a very large iteration count. With a large enough value, the client spends an unbounded amount of CPU time inside PBKDF2 before authentication can fail. A single attempt ties up a CPU core. Repeated or concurrent attempts exhaust client CPU and can wedge connection pools. In affected versions, loginTimeout did not fully mitigate this problem. When loginTimeout expired, the caller could stop waiting, but the worker thread performing the connection attempt could continue running and burning CPU inside the SCRAM PBKDF2 computation. This issue has been patched in version 42.7.11.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-29 18:00 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M mitre root

References

14 references

URL	Tags
https://github.com/pgjdbc/pgjdbc/security/advisor…	x_refsource_CONFIRM
https://github.com/pgjdbc/pgjdbc/releases/tag/REL…	x_refsource_MISC
https://access.redhat.com/security/cve/CVE-2026-42198	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2463857	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:52928	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24348	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25030	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:52978	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:54532	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:52929	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:52930	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:22304	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19098	vendor-advisoryx_refsource_REDHAT

Impacted products

14 products

Vendor	Product	Version
pgjdbc	pgjdbc	Affected: >= 42.2.0, < 42.7.11
Red Hat	Red Hat build of Quarkus 3.27.3.SP2	cpe:/a:redhat:quarkus:3.27::el8
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:42.7.2-1.el10_2.2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:42.7.1-7.el10_0.1 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:42.2.14-4.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:42.2.14-5.el8_8.1 , < * (rpm) cpe:/a:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:42.2.14-5.el8_8.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:42.2.28-2.el9_8.2 , < * (rpm) cpe:/a:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:42.2.28-1.el9_2.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	Unaffected: 0:42.2.28-1.el9_4.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:42.2.28-1.el9_6.1 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat AMQ Broker 7	cpe:/a:redhat:amq_broker:7
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7

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