CVE-2026-14178

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2026-06-30. a secondary CVSS source baseline 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

openGauss 在处理带 NLS 参数的 to_timestamp 调用时，to_timestamp_with_fmt_nls() 会将 nls_fmt_str 保存到 u_sess->parser_cxt.nls_fmt_str。在 seqscan + sort 执行路径下，该字符串原本被分配在 SeqScan 的表达式上下文中；当 SeqScan 完成后，该内存上下文会被 reset，但后续结果输出阶段 timestamp_out() 仍会通过 CheckNlsFormat() 访问 u_sess->parser_cxt.nls_fmt_str，导致访问已释放内存。攻击者在具备数据库 SQL 执行权限的情况下，可构造特定 to_timestamp(..., ..., nlsparam) 查询触发 heap-use-after-free。在 ASan/Memcheck 环境下表现为数据库服务退出；在实际运行环境中可能造成后端进程异常退出，影响数据库服务可用性，形成拒绝服务风险。该问题在openGauss-server-7.0.0-RC1版本和openGauss-server-7.0.0-RC2版本存在，目前已在openGauss-server-7.0.0-RC3版本修复。由于 openGauss-server-7.0.0-RC1版本和openGauss-server-7.0.0-RC2均为创新版本，不会发布针对性补丁包，涉及版本升级至 openGauss-server-7.0.0-RC3或更新版本即可。

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
31(Track)
EG Risk 31/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity59% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

June 30, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Jun 30, 2026
No patch confirmed yet.
generic

AtomGit - 全球开发者的开源社区,开源代码托管平台

https://gitcode.com/opengauss/openGauss-server/pull/8877

Vendor Advisories for CVE-2026-14178(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 53× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 148 total refreshes for this CVE.

  1. 2026-09-11 14:52 UTCEPSS rescore
  2. 2026-09-11 09:36 UTCEPSS rescore
  3. 2026-09-10 09:34 UTCEPSS rescore
  4. 2026-09-08 22:00 UTCEPSS rescore
  5. 2026-09-07 16:01 UTCEPSS rescore
  6. 2026-09-06 14:36 UTCEG score recompute
  7. 2026-09-06 14:36 UTCGHSA enrichment
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-04 05:06 UTCEPSS rescore
  10. 2026-09-02 14:11 UTCEPSS rescore
  11. 2026-09-01 13:53 UTCEPSS rescore
  12. 2026-09-01 04:39 UTCEPSS rescore
  13. 2026-08-30 19:17 UTCEPSS rescore
  14. 2026-08-30 18:09 UTCEG score recompute
  15. 2026-08-30 18:09 UTCGHSA enrichment
  16. 2026-08-30 01:21 UTCEPSS rescore
  17. 2026-08-28 21:40 UTCEPSS rescore
  18. 2026-08-27 22:42 UTCEG score recompute
  19. 2026-08-27 22:42 UTCGHSA enrichment
  20. 2026-08-27 14:24 UTCEPSS rescore
  21. 2026-08-25 13:48 UTCEPSS rescore
  22. 2026-08-24 11:44 UTCEG score recompute
  23. 2026-08-24 11:44 UTCGHSA enrichment
  24. 2026-08-23 08:27 UTCEG score recompute
  25. 2026-08-23 08:27 UTCGHSA enrichment
Show 75 more
  1. 2026-08-23 00:19 UTCEPSS rescore
  2. 2026-08-22 08:27 UTCEG score recompute
  3. 2026-08-22 08:27 UTCGHSA enrichment
  4. 2026-08-21 23:48 UTCEPSS rescore
  5. 2026-08-21 06:37 UTCEG score recompute
  6. 2026-08-21 06:37 UTCGHSA enrichment
  7. 2026-08-20 22:55 UTCEPSS rescore
  8. 2026-08-20 06:47 UTCEG score recompute
  9. 2026-08-20 06:47 UTCGHSA enrichment
  10. 2026-08-19 17:03 UTCEPSS rescore
  11. 2026-08-19 06:57 UTCEG score recompute
  12. 2026-08-19 06:56 UTCGHSA enrichment
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-18 06:22 UTCEG score recompute
  15. 2026-08-18 06:22 UTCGHSA enrichment
  16. 2026-08-16 20:04 UTCEG score recompute
  17. 2026-08-16 20:04 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 02:14 UTCEPSS rescore
  20. 2026-08-15 20:14 UTCEG score recompute
  21. 2026-08-15 20:14 UTCGHSA enrichment
  22. 2026-08-15 01:30 UTCEPSS rescore
  23. 2026-08-14 20:22 UTCEG score recompute
  24. 2026-08-14 20:22 UTCGHSA enrichment
  25. 2026-08-13 22:00 UTCEPSS rescore
  26. 2026-08-13 20:32 UTCGHSA enrichment
  27. 2026-08-12 20:43 UTCEG score recompute
  28. 2026-08-12 20:43 UTCGHSA enrichment
  29. 2026-08-12 13:50 UTCEPSS rescore
  30. 2026-08-11 20:53 UTCEG score recompute
  31. 2026-08-11 20:53 UTCGHSA enrichment
  32. 2026-08-11 13:42 UTCEPSS rescore
  33. 2026-08-10 23:59 UTCEPSS rescore
  34. 2026-08-10 21:04 UTCGHSA enrichment
  35. 2026-08-09 21:14 UTCEG score recompute
  36. 2026-08-09 21:14 UTCGHSA enrichment
  37. 2026-08-09 13:46 UTCEPSS rescore
  38. 2026-08-08 21:25 UTCEG score recompute
  39. 2026-08-08 21:25 UTCGHSA enrichment
  40. 2026-08-08 16:37 UTCEPSS rescore
  41. 2026-08-07 21:35 UTCEG score recompute
  42. 2026-08-07 21:35 UTCGHSA enrichment
  43. 2026-08-06 21:46 UTCEG score recompute
  44. 2026-08-06 21:46 UTCGHSA enrichment
  45. 2026-08-06 13:46 UTCEPSS rescore
  46. 2026-08-05 21:56 UTCEG score recompute
  47. 2026-08-05 21:56 UTCGHSA enrichment
  48. 2026-08-05 19:17 UTCEPSS rescore
  49. 2026-08-04 22:07 UTCEG score recompute
  50. 2026-08-04 22:07 UTCGHSA enrichment
  51. 2026-08-04 15:09 UTCEPSS rescore
  52. 2026-08-04 10:38 UTCEPSS rescore
  53. 2026-08-03 21:48 UTCEG score recompute
  54. 2026-08-03 21:48 UTCGHSA enrichment
  55. 2026-08-03 10:35 UTCEPSS rescore
  56. 2026-08-02 21:59 UTCEG score recompute
  57. 2026-08-02 21:59 UTCGHSA enrichment
  58. 2026-08-02 02:26 UTCEPSS rescore
  59. 2026-08-01 22:09 UTCEG score recompute
  60. 2026-08-01 22:09 UTCGHSA enrichment
  61. 2026-08-01 04:15 UTCEPSS rescore
  62. 2026-07-31 22:19 UTCGHSA enrichment
  63. 2026-07-30 22:13 UTCEG score recompute
  64. 2026-07-30 22:13 UTCGHSA enrichment
  65. 2026-07-30 16:27 UTCEPSS rescore
  66. 2026-07-30 01:30 UTCEPSS rescore
  67. 2026-07-29 22:24 UTCGHSA enrichment
  68. 2026-07-28 19:19 UTCEG score recompute
  69. 2026-07-28 19:18 UTCGHSA enrichment
  70. 2026-07-28 15:36 UTCEPSS rescore
  71. 2026-07-27 16:50 UTCEG score recompute
  72. 2026-07-27 16:50 UTCGHSA enrichment
  73. 2026-07-27 14:13 UTCEPSS rescore
  74. 2026-07-26 14:54 UTCEPSS rescore
  75. 2026-07-26 14:54 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-14178?
CVE-2026-14178 is a medium vulnerability published on June 30, 2026. openGauss 在处理带 NLS 参数的 totimestamp 调用时，totimestampwithfmtnls() 会将 nlsfmtstr 保存到 usess->parsercxt.nlsfmtstr。在 seqscan + sort 执行路径下，该字符串原本被分配在 SeqScan 的表达式上下文中；当 SeqScan 完成后，该内存上下文会被 reset，但后续结果输出阶段 timestampout() 仍会通过 CheckNlsFormat() 访问 usess->parsercxt.nlsfmtstr，导致访问已释放内存。攻击者在具备数据库 SQL…
When was CVE-2026-14178 disclosed?
CVE-2026-14178 was first published in the National Vulnerability Database on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14178 actively exploited?
CVE-2026-14178 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.0% of all scored CVEs.
What is the CVSS score of CVE-2026-14178?
CVE-2026-14178 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2026-14178?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14178, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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