CVE-2026-33816

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under CISA-ADP (Vulnrichment) CVSS v3.1 (NVD's own analysis pending). EPSS exploit probability: 0.6%, top 55% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cisa-adp, epss
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Memory-safety vulnerability in github.com/jackc/pgx/v5.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
EPSS PROB
0.9%
EPSS %ILE
57th
KEV
Not listed

Published

April 7, 2026

Last Modified

September 11, 2026

Advisory Details (9)

Auto-updated Oct 9, 2026
Patch available.
generic

GO-2026-4772 - Go Packages

https://pkg.go.dev/vuln/GO-2026-4772
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:24475
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:22423
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:19137
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:17789
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:13829
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:13791
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:11217
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:11070

Vendor Advisories for CVE-2026-33816(20)

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

Patch Availability(21)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcustom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operator:17882901212026-09-02redhat
redhatflightctl-0:1.1.3-1.el9em2026-07-16redhat
redhatrhem/flightctl-worker-rhel10:17841949712026-07-16redhat
redhatodf4/rook-ceph-rhel9-operator:17836692192026-07-16redhat
redhatrhem/flightctl-worker-rhel9:17841277752026-07-15redhat
redhatflightctl-0:1.0.3-1.el9em2026-07-08redhat
redhatopenshift-pipelines/pipelines-results-api-rhel9:17806415742026-06-17redhat
redhatcustom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operator:17799535352026-06-17redhat
redhatrhacm2/acm-grafana-rhel9:17809268052026-06-11redhat
redhatmulticluster-globalhub/multicluster-globalhub-grafana-rhel9:17799252732026-06-08redhat
redhatrhacm2/acm-grafana-rhel9:17806770032026-06-08redhat
redhatrhtas/trillian-logsigner-rhel9:17800535722026-06-08redhat
redhatrhtas/updatetree-rhel9:17800535722026-06-08redhat
redhatrhtas/createtree-rhel9:17800535722026-06-08redhat
redhatmulticluster-globalhub/multicluster-globalhub-rhel9-operator:17792099922026-06-02redhat
redhatcryostat/cryostat-storage-rhel9:4.2.0-132026-05-26redhat
redhatgo-fdo-server-0:1.0.1-1.el10_22026-05-19redhat
redhatgo-fdo-server-main-1.0.1-0.1.hum12026-05-06redhat
redhatadvanced-cluster-security/rhacs-scanner-v4-rhel8:17779866302026-05-05redhat
redhatadvanced-cluster-security/rhacs-scanner-v4-rhel8:17779764892026-05-05redhat
redhatadvanced-cluster-security/rhacs-scanner-v4-rhel8:17773077912026-04-27redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 2 ecosystems)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
golang-github-jackc-pgx-v55.8.0-1
  • every version up to 5.9.2-1: fixed in 5.9.2-1
—
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/jackc/pgx/v5—
  • every version up to 5.9.0: fixed in 5.9.0
—

Weakness Classification(1)

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

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 28× 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 290 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Same product

3 shown

Debian:14:golang-github-jackc-pgx-v5 · Go:github.com/jackc/pgx/v5

Frequently asked(5)

What is CVE-2026-33816?
CVE-2026-33816 is a critical vulnerability published on April 7, 2026. Memory-safety vulnerability in github.com/jackc/pgx/v5.
When was CVE-2026-33816 disclosed?
CVE-2026-33816 was first published on April 7, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33816 actively exploited?
CVE-2026-33816 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (57th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-33816?
CVE-2026-33816 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-33816?
A fix for CVE-2026-33816 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-33816 are linked in the Vendor Advisories panel on this page.

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