CVE-2026-88056

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 64% 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: epss, secondary
Elevated
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.6Exploit: Elevated riskExposed: 0

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

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular Server-Side Rendering in @angular/platform-server processes user-controlled resource or request URLs through HttpClient after application code validates them with WHATWG URL parsing. The resolveUrl and parseUrl utilities called String.prototype.trim(), which removed leading Unicode whitespace such as U+00A0 or U+FEFF after the input passed a same-origin check, converting a relative path into a protocol-relative attacker-controlled URL. In affected applications that attach sensitive server-side credentials such as Authorization headers to approved requests, relativeUrlsTransformerInterceptorFn then dispatched the request to the attacker-controlled origin, causing SSRF and credential disclosure. This issue is fixed in versions 20.3.30, 21.2.22, and 22.1.4.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
70(Attend)
EG Risk 70/100SSVC: Attend

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
Severity86% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 15, 2026

Advisory Details (7)

Auto-updated Sep 10, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github_release Patch Available

22.1.4

Patch available: angular/angular v22.1.4

https://github.com/angular/angular/releases/tag/v22.1.4
github_release Patch Available

21.2.22

Patch available: angular/angular v21.2.22

https://github.com/angular/angular/releases/tag/v21.2.22
github_release Patch Available

20.3.30

Patch available: angular/angular v20.3.30

https://github.com/angular/angular/releases/tag/v20.3.30
github_commit Patch Available

commit 71e52d1396b9 (angular/angular)

Patch available: angular/angular v22.1.4 (contains commit 71e52d1396b9)

https://github.com/angular/angular/commit/71e52d1396b9cef98652929b73e08c4cde645970
github_commit Patch Available

commit 5aa6d97deb9e (angular/angular)

Patch available: angular/angular v21.2.22 (contains commit 5aa6d97deb9e)

https://github.com/angular/angular/commit/5aa6d97deb9ef1de14e23748b7fa74f97d183132
github_commit Patch Available

commit 3e924cc8dbbb (angular/angular)

Patch available: angular/angular v22.2.0-next.4 (contains commit 3e924cc8dbbb)

https://github.com/angular/angular/commit/3e924cc8dbbb57f23b262cb8f0d7e2bd0673034c
github Patch Available🟡 PoC Available

SSRF and Cross-Origin Credential Disclosure via URL Resolution Discrepancy in SSR · Advisory · angular/angular · GitHub

https://github.com/angular/angular/security/advisories/GHSA-f6mr-pjwc-34m4

Vendor Advisories for CVE-2026-88056(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
@angular/platform-server—22.1.4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 22× 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.

  1. 2026-09-19 21:33 UTCEG score recompute
  2. 2026-09-18 22:55 UTCEG score recompute
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 00:18 UTCEG score recompute
  5. 2026-09-17 19:32 UTCEPSS rescore
  6. 2026-09-16 14:11 UTCEG score recompute
  7. 2026-09-16 14:09 UTCEPSS rescore
  8. 2026-09-16 05:15 UTCEPSS rescore
  9. 2026-09-15 15:33 UTCEG score recompute
  10. 2026-09-15 15:03 UTCEG score recompute
  11. 2026-09-15 13:07 UTCEG score recompute
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-14 03:10 UTCEG score recompute
  14. 2026-09-13 16:48 UTCEPSS rescore
  15. 2026-09-12 17:14 UTCEG score recompute
  16. 2026-09-12 15:02 UTCEPSS rescore
  17. 2026-09-11 18:36 UTCEG score recompute
  18. 2026-09-11 14:53 UTCEPSS rescore
  19. 2026-09-11 14:53 UTCEPSS rescore
  20. 2026-09-10 19:18 UTCEG score recompute
  21. 2026-09-10 18:50 UTCEG score recompute
  22. 2026-09-10 18:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-88056?
CVE-2026-88056 is a high vulnerability published on September 10, 2026. Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.30, 21.2.22, and 22.1.4, Angular Server-Side Rendering in @angular/platform-server processes user-controlled resource or request URLs through HttpClient…
When was CVE-2026-88056 disclosed?
CVE-2026-88056 was first published in the National Vulnerability Database on September 10, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-88056 actively exploited?
CVE-2026-88056 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 63.5% of all scored CVEs.
What is the CVSS score of CVE-2026-88056?
CVE-2026-88056 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-88056?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-88056, 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.

Dependency Blast Radius

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