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3 vulnerabilities found for openGauss-server by openGauss-server
CVE-2026-111438 (GCVE-0-2026-111438)
Vulnerability from cvelistv5
Published
2026-10-19 08:08
Modified
2026-10-19 17:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-288 - Authentication bypass using an alternate path or channel
Summary
在 openGauss-server 的 src/common/backend/libpq/hba.cpp 中，复制连接认证存在访问控制绕过。hba_getauthmethod() 在处理 HADR/SW 复制发送方时，不要求 is_node_internal_connection()，直接调用 check_hba_replication()。check_hba_replication() 仅按 replication 标记做弱匹配，缺少普通 check_hba() 中的远程 trust 禁止等完整校验。因此，非内部网络的 HADR/SW 复制连接可绕过内部连接限制和完整 pg_hba 策略完成认证，进而通过复制协议读取备份与日志数据。
此问题随 HADR 复制发送方绕过内部连接校验进入代码，自 3.0.0 起即存在。受影响版本包括 3.0.x、3.1.x、5.0.x、5.1.0、6.0.x，以及 7.0.0-RC1、7.0.0-RC2、7.0.0-RC3。该问题已在 7.0.0-LTS版本修复，通过要求 HADR/SW 复制发送方必须经过 is_node_internal_connection 校验，使外部复制连接改走普通 check_hba() 并触发禁止远程 trust 策略。修复pr见https://gitcode.com/opengauss/openGauss-server/pull/9757。
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| openGauss-server | openGauss-server |
Version: 3.0.0-3.0.5 Version: 3.1.0-3.1.1 Version: 5.0.0-RC1 Version: 5.0.0-5.0.3 Version: 6.0.0-RC1 Version: 6.0.0-6.0.6 Version: 7.0.0-RC1, 7.0.0-RC2, 7.0.0-RC3 |
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CVE-2026-111439 (GCVE-0-2026-111439)
Vulnerability from cvelistv5
Published
2026-10-19 07:59
Modified
2026-10-19 17:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-862 - Missing Authorization
Summary
在 openGauss-server的 src/common/backend/utils/adt/genfile.cpp 模块中，内置函数 pg_read_binary_file_blocks() 存在权限校验逻辑缺陷。该函数在入口处仅校验了起始块号（startBlockNum）和块数量（blockCount）的范围，随后直接调用底层文件读取例程 ReadBinaryFileBlocksFirstCall()。该底层例程仅执行了路径规范化检查以及针对 .. 路径遍历和数据目录边界的基本检查，缺失了对调用者数据库权限（如 SELECT 权限）的校验。此外，辅助函数 is_row_data_file() 也仅用于识别文件形态，未包含权限检查。因此，任何拥有普通数据库连接权限的用户，只要能够通过 pg_relation_filepath() 等函数获取到目标表的底层关系文件路径（例如压缩数据的 _compress 文件路径），即可无需具备该表的 SELECT 权限，直接读取表数据的二进制块。
此漏洞影响此前3.0.0到6.0.0间的所有版本及补丁版，并在7.0.0-LTS版本修复。修复patch详见：https://gitcode.com/opengauss/openGauss-server/pull/9374。
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| openGauss-server | openGauss-server |
Version: 3.0.0-3.0.5 Version: 3.1.0-3.1.1 Version: 5.0.0-RC1 Version: 5.0.0-5.0.3 Version: 5.1.0 Version: 6.0.0-RC1 Version: 6.0.0-6.0.6 Version: 7.0.0-RC1, 7.0.0-RC2, 7.0.0-RC3 |
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"role": "CISA Coordinator",
"timestamp": "2026-10-19T17:24:53.483125Z",
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"value": "\u5728 openGauss-server\u7684 src/common/backend/utils/adt/genfile.cpp \u6a21\u5757\u4e2d\uff0c\u5185\u7f6e\u51fd\u6570 pg_read_binary_file_blocks() \u5b58\u5728\u6743\u9650\u6821\u9a8c\u903b\u8f91\u7f3a\u9677\u3002\u8be5\u51fd\u6570\u5728\u5165\u53e3\u5904\u4ec5\u6821\u9a8c\u4e86\u8d77\u59cb\u5757\u53f7\uff08startBlockNum\uff09\u548c\u5757\u6570\u91cf\uff08blockCount\uff09\u7684\u8303\u56f4\uff0c\u968f\u540e\u76f4\u63a5\u8c03\u7528\u5e95\u5c42\u6587\u4ef6\u8bfb\u53d6\u4f8b\u7a0b ReadBinaryFileBlocksFirstCall()\u3002\u8be5\u5e95\u5c42\u4f8b\u7a0b\u4ec5\u6267\u884c\u4e86\u8def\u5f84\u89c4\u8303\u5316\u68c0\u67e5\u4ee5\u53ca\u9488\u5bf9 .. \u8def\u5f84\u904d\u5386\u548c\u6570\u636e\u76ee\u5f55\u8fb9\u754c\u7684\u57fa\u672c\u68c0\u67e5\uff0c\u7f3a\u5931\u4e86\u5bf9\u8c03\u7528\u8005\u6570\u636e\u5e93\u6743\u9650\uff08\u5982 SELECT \u6743\u9650\uff09\u7684\u6821\u9a8c\u3002\u6b64\u5916\uff0c\u8f85\u52a9\u51fd\u6570 is_row_data_file() \u4e5f\u4ec5\u7528\u4e8e\u8bc6\u522b\u6587\u4ef6\u5f62\u6001\uff0c\u672a\u5305\u542b\u6743\u9650\u68c0\u67e5\u3002\u56e0\u6b64\uff0c\u4efb\u4f55\u62e5\u6709\u666e\u901a\u6570\u636e\u5e93\u8fde\u63a5\u6743\u9650\u7684\u7528\u6237\uff0c\u53ea\u8981\u80fd\u591f\u901a\u8fc7 pg_relation_filepath() \u7b49\u51fd\u6570\u83b7\u53d6\u5230\u76ee\u6807\u8868\u7684\u5e95\u5c42\u5173\u7cfb\u6587\u4ef6\u8def\u5f84\uff08\u4f8b\u5982\u538b\u7f29\u6570\u636e\u7684 _compress \u6587\u4ef6\u8def\u5f84\uff09\uff0c\u5373\u53ef\u65e0\u9700\u5177\u5907\u8be5\u8868\u7684 SELECT \u6743\u9650\uff0c\u76f4\u63a5\u8bfb\u53d6\u8868\u6570\u636e\u7684\u4e8c\u8fdb\u5236\u5757\u3002\u003cbr\u003e\u6b64\u6f0f\u6d1e\u5f71\u54cd\u6b64\u524d3.0.0\u52306.0.0\u95f4\u7684\u6240\u6709\u7248\u672c\u53ca\u8865\u4e01\u7248\uff0c\u5e76\u57287.0.0-LTS\u7248\u672c\u4fee\u590d\u3002\u4fee\u590dpatch\u8be6\u89c1\uff1ahttps://gitcode.com/opengauss/openGauss-server/pull/9374\u3002"
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CVE-2026-111441 (GCVE-0-2026-111441)
Vulnerability from cvelistv5
Published
2026-10-19 02:31
Modified
2026-10-19 17:42
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-122 - Heap-based buffer overflow
Summary
在 openGauss-server 的 src/gausskernel/cbb/utils/hll/hll.cpp 中，内置函数 HllObjectUnpack() 存在长度校验缺陷。该函数从用户提供的 packed HLL 解析 lenUsed 与 lenTotal 后，仅检查输入长度足以覆盖 HLL_HEAD_SIZE + lenUsed，随后按 lenTotal 分配缓冲区、按 lenUsed 调用 memcpy_s() 拷贝输入，既未校验 lenTotal >= lenUsed，也将 memcpy_s() 目标大小写成 lenUsed 而非实际分配的 lenTotal，导致安全拷贝无法拦截越界写。hll_in()、hll_print()、hll_cardinality() 等 SQL 入口会走同一解包路径。因此，普通数据库连接用户只需构造 lenTotal 小于 lenUsed 的畸形 packed HLL（例如经 ::hll 进入 hll_in()），即可触发服务端堆越界写，存在内存破坏风险。此问题随 packed HLL 解包函数 HllObjectUnpack() 进入代码，v2.1.0 起即存在。受影响版本包括 2.1.0、3.0.x、3.1.x、5.0.x、5.1.0、6.0.x，以及 7.0.0-RC1、7.0.0-RC2、7.0.0-RC3。该问题已在 7.0.0-LTS 版本修复，通过在 HllObjectUnpack() 中补齐 lenUsed <= lenTotal 校验，并将 memcpy_s() 的目标大小改为实际分配的 lenTotal。修复 PR 见 https://gitcode.com/opengauss/openGauss-server/pull/9380 。
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| openGauss-server | openGauss-server | ||||||||
|
|||||||||
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{
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