CVE-2026-73515

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. A secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

PostGIS before 3.7.0beta2 contains an out-of-bounds read vulnerability that allows attackers to cause memory disclosure or a server crash by supplying a malformed FlatGeobuf buffer. The FlatGeobuf property metadata decoder verifies that a string length field is present but fails to verify that the subsequent string body is contained within the supplied buffer before materializing it into a SQL-visible value, enabling memory disclosure or denial of service.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
52
EG Risk 52/100CISA SSVC

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
Severity81% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 13, 2026

Last Modified

September 24, 2026

Advisory Details (3)

Auto-updated Aug 13, 2026
⚠️ Active exploitation confirmed. Patch available.
generic

PostGIS < 3.7.0beta2 Out-of-Bounds Read via FlatGeobuf Buffer | Advisories | VulnCheck

https://www.vulncheck.com/advisories/postgis-0beta2-out-of-bounds-read-via-flatgeobuf-buffer
generic
https://gitea.osgeo.org/postgis/postgis/raw/tag/3.7.0beta2/NEWS
generic🔴 Active Exploitation

Part 1/6 | Systemic Risks in the Managed PostgreSQL Industry: Extension Risks Are Real! Exploiting PostGis Memory Corruption Bug at NeonDB, SupaBase and Many More - Mehmet Ince @mdisec - Vulnerability Researcher | Building security products | Security Advisor | Amateur Muay Thai fighter

https://mehmetince.net/part-1-6-systemic-risks-in-the-managed-postgresql-industry-extension-risks-are-real-exploiting-postgis-memory-corruption-bug-at-neondb-supabase-and-many-more/

Vendor Advisories for CVE-2026-73515(3)

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

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatpostgresql:18-9080020260914093252.rhel92026-09-16redhat
redhatpostgresql:16-9080020260907191505.rhel92026-09-15redhat
redhatpostgresql18-postgis-0:3.5.3-1.el10_2.12026-09-14redhat
redhatpostgresql16-postgis-0:3.5.3-4.el10_2.12026-09-09redhat

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
postgis3.3.2+dfsg-1 ... 3.7.0~rc2+dfsg-1~exp1 (67 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
postgis3.5.2+dfsg-1 ... 3.7.0~rc2+dfsg-1~exp1 (23 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
postgis3.5.2+dfsg-1 ... 3.7.0~rc2+dfsg-1~exp1 (23 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

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 26× in last 7d / 135× 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 229 total refreshes for this CVE.

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

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

Same product

1 shown

Debian:12:postgis

Frequently asked(5)

What is CVE-2026-73515?
CVE-2026-73515 is a high vulnerability published on August 13, 2026. PostGIS before 3.7.0beta2 contains an out-of-bounds read vulnerability that allows attackers to cause memory disclosure or a server crash by supplying a malformed FlatGeobuf buffer. The FlatGeobuf property metadata decoder verifies that a string length field is present but fails to verify that the…
When was CVE-2026-73515 disclosed?
CVE-2026-73515 was first published on August 13, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73515 actively exploited?
CVE-2026-73515 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73515?
CVE-2026-73515 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73515?
A fix for CVE-2026-73515 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73515 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-73515

Explore →

Is Your Infrastructure Affected by CVE-2026-73515?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs