CVE-2026-50738

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory (severity: HIGH) published 2026-07-28. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

A use-after-free condition exists in pglogical's worker signaling code, where a worker structure can be dereferenced after the underlying slot has been freed or recycled during normal worker lifecycle events. The condition is reachable during normal replication operation, including by a low-privileged user able to influence worker start, stop, and restart timing through permitted pglogical operations. In the typical case the condition crashes replication workers, causing an availability impact. In the worst case a use-after-free in a PostgreSQL backend can be leveraged as a remote code execution primitive at the privilege of that backend.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

July 28, 2026

Last Modified

August 24, 2026

References (1)

Vendor Advisories for CVE-2026-50738(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
pglogical2.3.3-3 ... 2.4.8-1 (19 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
pglogical2.4.2-3 ... 2.4.8-1 (11 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
pglogical2.4.5-1, 2.4.6-1, 2.4.6-2, 2.4.7-1, 2.4.8-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
pglogical2.4.5-1, 2.4.6-1, 2.4.6-2, 2.4.7-12.4.8-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 103× 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 116 total refreshes for this CVE.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 23:31 UTCEG score recompute
  3. 2026-08-29 23:31 UTCGHSA enrichment
  4. 2026-08-28 21:41 UTCEPSS rescore
  5. 2026-08-27 14:25 UTCEPSS rescore
  6. 2026-08-27 12:31 UTCEG score recompute
  7. 2026-08-27 12:31 UTCGHSA enrichment
  8. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-26 14:05 UTCGHSA enrichment
  10. 2026-08-25 15:36 UTCEG score recompute
  11. 2026-08-25 15:36 UTCGHSA enrichment
  12. 2026-08-25 13:49 UTCEPSS rescore
  13. 2026-08-24 17:01 UTCEG score recompute▼ 2.40
  14. 2026-08-24 17:00 UTCGHSA enrichment
  15. 2026-08-24 16:57 UTCNVD updateCVSS v3 → 5.3 · severity → MEDIUM
  16. 2026-08-24 12:41 UTCEG score recompute
  17. 2026-08-24 12:41 UTCGHSA enrichment
  18. 2026-08-24 00:08 UTCGHSA enrichment
  19. 2026-08-23 11:36 UTCGHSA enrichment
  20. 2026-08-22 23:04 UTCGHSA enrichment
  21. 2026-08-22 10:31 UTCEG score recompute
  22. 2026-08-22 10:31 UTCGHSA enrichment
  23. 2026-08-21 23:49 UTCEPSS rescore
  24. 2026-08-21 21:58 UTCGHSA enrichment
  25. 2026-08-21 09:26 UTCEG score recompute
Show 75 more
  1. 2026-08-21 09:26 UTCGHSA enrichment
  2. 2026-08-20 22:55 UTCEPSS rescore
  3. 2026-08-20 20:53 UTCGHSA enrichment
  4. 2026-08-20 08:21 UTCGHSA enrichment
  5. 2026-08-19 19:49 UTCEG score recompute
  6. 2026-08-19 19:49 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 07:16 UTCGHSA enrichment
  9. 2026-08-18 18:39 UTCEG score recompute
  10. 2026-08-18 18:39 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 01:08 UTCEG score recompute
  13. 2026-08-18 01:07 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 11:45 UTCGHSA enrichment
  16. 2026-08-16 23:10 UTCEG score recompute
  17. 2026-08-16 23:10 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 10:38 UTCEG score recompute
  20. 2026-08-16 10:38 UTCGHSA enrichment
  21. 2026-08-16 02:14 UTCEPSS rescore
  22. 2026-08-15 22:06 UTCGHSA enrichment
  23. 2026-08-15 09:34 UTCEG score recompute
  24. 2026-08-15 09:34 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
  26. 2026-08-14 21:01 UTCGHSA enrichment
  27. 2026-08-14 08:29 UTCEG score recompute
  28. 2026-08-14 08:29 UTCGHSA enrichment
  29. 2026-08-13 22:00 UTCEPSS rescore
  30. 2026-08-13 19:57 UTCGHSA enrichment
  31. 2026-08-13 07:24 UTCGHSA enrichment
  32. 2026-08-12 18:51 UTCEG score recompute
  33. 2026-08-12 18:51 UTCGHSA enrichment
  34. 2026-08-12 13:51 UTCEPSS rescore
  35. 2026-08-12 06:19 UTCGHSA enrichment
  36. 2026-08-11 17:47 UTCEG score recompute
  37. 2026-08-11 17:47 UTCGHSA enrichment
  38. 2026-08-11 05:10 UTCEG score recompute
  39. 2026-08-11 05:10 UTCGHSA enrichment
  40. 2026-08-11 00:00 UTCEPSS rescore
  41. 2026-08-10 16:38 UTCGHSA enrichment
  42. 2026-08-10 03:55 UTCGHSA enrichment
  43. 2026-08-09 15:23 UTCEG score recompute
  44. 2026-08-09 15:23 UTCGHSA enrichment
  45. 2026-08-09 13:46 UTCEPSS rescore
  46. 2026-08-09 02:51 UTCEG score recompute
  47. 2026-08-09 02:51 UTCGHSA enrichment
  48. 2026-08-08 16:37 UTCEPSS rescore
  49. 2026-08-08 14:19 UTCGHSA enrichment
  50. 2026-08-08 01:46 UTCEG score recompute
  51. 2026-08-08 01:46 UTCGHSA enrichment
  52. 2026-08-07 13:14 UTCGHSA enrichment
  53. 2026-08-07 00:42 UTCEG score recompute
  54. 2026-08-07 00:42 UTCGHSA enrichment
  55. 2026-08-06 13:47 UTCEPSS rescore
  56. 2026-08-06 12:09 UTCGHSA enrichment
  57. 2026-08-05 23:37 UTCEG score recompute
  58. 2026-08-05 23:37 UTCGHSA enrichment
  59. 2026-08-05 19:17 UTCEPSS rescore
  60. 2026-08-05 11:04 UTCGHSA enrichment
  61. 2026-08-04 22:28 UTCEG score recompute
  62. 2026-08-04 22:28 UTCGHSA enrichment
  63. 2026-08-04 15:10 UTCEPSS rescore
  64. 2026-08-04 10:39 UTCEPSS rescore
  65. 2026-08-04 09:56 UTCGHSA enrichment
  66. 2026-08-03 21:10 UTCEG score recompute
  67. 2026-08-03 21:10 UTCGHSA enrichment
  68. 2026-08-03 10:36 UTCEPSS rescore
  69. 2026-08-03 08:37 UTCGHSA enrichment
  70. 2026-08-02 20:03 UTCGHSA enrichment
  71. 2026-08-02 07:31 UTCEG score recompute
  72. 2026-08-02 07:31 UTCGHSA enrichment
  73. 2026-08-02 02:27 UTCEPSS rescore
  74. 2026-08-01 18:58 UTCGHSA enrichment
  75. 2026-08-01 06:25 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-50738?
CVE-2026-50738 is a medium vulnerability published on July 28, 2026. A use-after-free condition exists in pglogical's worker signaling code, where a worker structure can be dereferenced after the underlying slot has been freed or recycled during normal worker lifecycle events. The condition is reachable during normal replication operation, including by a…
When was CVE-2026-50738 disclosed?
CVE-2026-50738 was first published in the National Vulnerability Database on July 28, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50738 actively exploited?
CVE-2026-50738 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 77.0% of all scored CVEs.
What is the CVSS score of CVE-2026-50738?
CVE-2026-50738 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-50738?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50738, 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.

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