CVE-2026-71553

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (35th percentile of EPSS-scored CVEs). 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: epss, secondary
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.1Exploit: None knownExposed services: Not assessed

A fixed version is listed under Patch Availability — apply it.

ApostropheCMS is an open-source Node.js content management system. In 4.32.0 and earlier, PATCH /api/v1/article/:id accepts the inherited path toString.call and passes it through the utility module to apos.util.set() and apos.util.get(), allowing an authenticated editor to overwrite the shared Object.prototype.toString function's call property and cause a persistent process-wide denial of service until restart.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
32
EG Risk 32/100CISA 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fixed version is listed under Patch Availability. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
35th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fixed version is listed under Patch Availability. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 17, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated Aug 17, 2026
Fixed version listed under Patch Availability. Sources: github_commit, github.
githubMentions a patch (unverified)

2nd-order prototype pollution via PATCH leading to single-request persistent DoS · Advisory · apostrophecms/apostrophe · GitHub

https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-vmg4-6gfg-83qx
github_commit

commit 5a3746aaed49 (apostrophecms/apostrophe)

Fix landed in apostrophecms/apostrophe commit 5a3746aaed49 — awaiting tagged release

https://github.com/apostrophecms/apostrophe/commit/5a3746aaed49761e171c2cbfe793267c959829fd

Vendor Advisories for CVE-2026-71553(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npmapostrophe—ghsa

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

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
apostrophe—
  • every version through 4.32.0: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 90× 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 149 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-71553?
CVE-2026-71553 is a high vulnerability published on August 17, 2026. ApostropheCMS is an open-source Node.js content management system. In 4.32.0 and earlier, PATCH /api/v1/article/:id accepts the inherited path toString.call and passes it through the utility module to apos.util.set() and apos.util.get(), allowing an authenticated editor to overwrite the shared…
When was CVE-2026-71553 disclosed?
CVE-2026-71553 was first published on August 17, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71553 actively exploited?
CVE-2026-71553 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71553?
CVE-2026-71553 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-71553?
A fixed version for CVE-2026-71553 is listed under Patch Availability on this page: update to the version listed for your package. The vendor advisories EchelonGraph has for CVE-2026-71553 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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