CVE-2026-50735

MEDIUMNVD 6.86.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 6.8 from GitHub Security Advisory published 2026-07-28. NVD baseline CVSS 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
6.8EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

pglogical's apply worker does not sufficiently validate the length of certain fields in incoming replication protocol messages before copying them, resulting in an out-of-bounds read. A party acting as the publisher for a subscription, for example a non-PostgreSQL endpoint that speaks the pglogical replication protocol, can return crafted messages that cause the subscriber's apply worker to read beyond the bounds of an allocated buffer, disclosing adjacent process memory or crashing the worker. To exploit the issue an attacker must be able to direct a subscription at an endpoint they control. In default installations this requires privileges normally reserved for a superuser, so the issue is most relevant to managed deployments where the ability to create subscriptions has been delegated to non-superuser roles.

CVSS v3
6.8
EG Score
6.8MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100

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 (value × EchelonGraph’s weight)
Severity68% × 45%
The EG Score, 6.8 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
29th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 28, 2026

Last Modified

August 24, 2026

References (1)

Vendor Advisories for CVE-2026-50735(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 rangeFix by version rangeDependents
pglogical2.3.3-3 ... 2.4.8-1 (19 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
pglogical2.4.2-3 ... 2.4.8-1 (11 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
pglogical2.4.5-1, 2.4.6-1, 2.4.6-2, 2.4.7-1, 2.4.8-1
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
pglogical2.4.5-1, 2.4.6-1, 2.4.6-2, 2.4.7-1
  • every version up to 2.4.8-1: fixed in 2.4.8-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 56× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 175 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 75 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  4. 2026-10-12 15:59 UTCEG score recompute
  5. 2026-10-11 19:42 UTCEG score recompute
  6. 2026-10-11 16:56 UTCEG score recompute
  7. 2026-10-11 14:20 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  11. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  13. 2026-10-07 00:05 UTCEG score recompute
  14. 2026-10-07 00:05 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  15. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  16. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  17. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  18. 2026-10-04 07:09 UTCEG score recompute
  19. 2026-10-04 07:09 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  20. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  21. 2026-10-02 18:23 UTCEG score recompute
  22. 2026-10-02 18:23 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  23. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  24. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  25. 2026-10-01 03:43 UTCEG score recompute
Show 75 more
  1. 2026-10-01 03:43 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  2. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-09-29 07:44 UTCEG score recompute
  4. 2026-09-29 07:44 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  5. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  6. 2026-09-28 03:22 UTCEG score recompute
  7. 2026-09-28 03:22 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  8. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  9. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  10. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  11. 2026-09-25 06:10 UTCEG score recompute
  12. 2026-09-25 06:10 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  13. 2026-09-24 00:18 UTCEG score recompute
  14. 2026-09-24 00:18 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  15. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-09-22 21:41 UTCEG score recompute
  17. 2026-09-22 21:41 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  18. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-09-20 11:19 UTCEG score recompute
  20. 2026-09-20 11:18 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  21. 2026-09-19 05:16 UTCEG score recompute
  22. 2026-09-19 05:16 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  23. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  24. 2026-09-18 02:00 UTCEG score recompute
  25. 2026-09-18 02:00 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  26. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  27. 2026-09-16 11:50 UTCEG score recompute
  28. 2026-09-16 11:50 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  29. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  30. 2026-09-15 08:37 UTCEG score recompute
  31. 2026-09-15 08:37 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  32. 2026-09-13 18:32 UTCEG score recompute
  33. 2026-09-13 18:32 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  34. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  35. 2026-09-12 16:57 UTCEG score recompute
  36. 2026-09-12 16:57 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  37. 2026-09-11 15:22 UTCEG score recompute
  38. 2026-09-11 15:22 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  39. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  40. 2026-09-10 10:11 UTCEG score recompute
  41. 2026-09-10 10:11 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  42. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  43. 2026-09-09 08:01 UTCEG score recompute
  44. 2026-09-09 08:00 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  45. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  46. 2026-09-08 00:49 UTCEG score recompute
  47. 2026-09-08 00:49 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  48. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  49. 2026-09-06 23:14 UTCEG score recompute
  50. 2026-09-06 23:13 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  51. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  52. 2026-09-05 19:09 UTCEG score recompute
  53. 2026-09-05 19:09 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  54. 2026-09-04 12:00 UTCEG score recompute
  55. 2026-09-04 12:00 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  56. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  57. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  58. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  59. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  60. 2026-09-01 02:59 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  61. 2026-08-31 01:06 UTCEG score recompute
  62. 2026-08-31 01:06 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  63. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  64. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  65. 2026-08-29 23:31 UTCEG score recompute
  66. 2026-08-29 23:31 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  67. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  68. 2026-08-27 22:48 UTCEG score recompute
  69. 2026-08-27 22:48 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  70. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  71. 2026-08-26 21:13 UTCEG score recompute
  72. 2026-08-26 21:13 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8
  73. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  74. 2026-08-25 18:55 UTCEG score recompute
  75. 2026-08-25 18:55 UTCGHSA enrichmentGHSA-jhwv-w4qj-9cmf · GitHub CVSS 6.8

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-50735?
CVE-2026-50735 is a medium-severity vulnerability; its CVE record was published on July 28, 2026. pglogical's apply worker does not sufficiently validate the length of certain fields in incoming replication protocol messages before copying them, resulting in an out-of-bounds read. A party acting as the publisher for a subscription, for example a non-PostgreSQL endpoint that speaks the pglogical…
When was the CVE record for CVE-2026-50735 published?
The CVE record for CVE-2026-50735 was published on July 28, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 24, 2026; the record at its source may have been updated since.
Is CVE-2026-50735 actively exploited?
CVE-2026-50735 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-50735?
CVE-2026-50735 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2026-50735?
A fix for CVE-2026-50735 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-50735 are linked in the Vendor Advisories panel on this page.

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