VulnSocial

CVE-2026-57817Disclosure(apache / cxf)

LOWCVSS 8.1 · HIGH

Signal is active with 3 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the `c_hash` parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrated with a non-compliant or misconfigured Identity Provider (IdP) that omits the `c_hash`, the RP becomes vulnerable to Authorization Code Substitution/Injection attacks. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.

apache CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-20

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • cxf

Threat summary

  • 3 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 3 classified signals
  • 3 total mentions across 1 day

Affected systems

Vendors
apache
Products
cxf

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-08-06: 3Technical Details · 2026-08-06: 208-06
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-57817 The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the `c_hash` parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrat… https://www.cve.org/CVERecord?id=CVE-2026-57817 ----- Traducción: CVE-2026-57817 La … http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-57817, detailing a failure to validate the `c_hash` parameter in Apache CXF RP for OpenID Connect Hybrid Flow, but does not provide exploit code, active exploitation evidence, or mitigation steps.

    0000035
    97 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-57817 The OpenID Connect Core 1.0 specification mandates that the RP MUST validate the `c_hash` parameter when operating in the Hybrid Flow. If an Apache CXF RP is integrat… https://www.cve.org/CVERecord?id=CVE-2026-57817

    Post summary

    The notice highlights CVE‑2026‑57817 as a missing c_hash validation in OpenID Connect Hybrid Flow for an Apache CXF RP, linking to the CVE record, but offers no PoC, exploit, patch, or detailed technical data.

    000001.0K
    57.9K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-57817 Authorization Code Substitution Vulnerability in Apache CXF OpenID Connect Hybrid Flow https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-57817

    Post summary

    The text announces that CVE-2026-57817 is an authorization‑code substitution flaw in Apache CXF’s OpenID Connect Hybrid Flow. No proof‑of‑concept, exploitation details, or patch information are provided.

    0000099
    4.1K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appapachecxf---

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