VulnSocial

CVE-2026-48090Disclosure(envoyproxy / envoy)

LOWCVSS 5.9 · MEDIUM

Signal is active with 2 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

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, the HTTP OAuth2 filter (envoy.filters.http.oauth2) can leave an in-flight async token exchange attached to a downstream stream that has already been torn down. A late AsyncClient completion can still invoke OAuth2Filter methods that use StreamDecoderFilterCallbacks after that object’s lifetime has ended, causing undefined behavior, worker crashes (availability loss), and use-after-free / invalid-vptr failures under AddressSanitizer. This is a memory-safety / lifetime issue in the data plane, not a trivial config bug. Remote code execution is not claimed here; the primary demonstrated impact is DoS via crash and UB; any further impact would be deployment- and allocator-dependent. This vulnerability is fixed in 1.37.5 and 1.38.3.

envoyproxy CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Exploit / PoC references
Weakness type (CWE)
CWE-416

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

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

  • envoy

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
envoyproxy
Products
envoy

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-06-26: 2Technical Details · 2026-06-26: 106-26
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-48090 Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, the HTTP OAuth2 filter (envoy.filters.http… https://www.cve.org/CVERecord?id=CVE-2026-48090 ----- Traducción: CVE-2026-48090 Env… http://infoflow.cloud`

    Post summary

    A new vulnerability, CVE-2026-48090, in Envoy's HTTP OAuth2 filter affecting versions 1.37.0 through 1.37.5 and 1.38.3 has been disclosed, with a link to the official CVE record.

    0000023
    89 followersView on X
  • CVE@CVEnew
    General

    CVE-2026-48090 Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, the HTTP OAuth2 filter (envoy.filters.http… https://www.cve.org/CVERecord?id=CVE-2026-48090

    Post summary

    The text merely announces CVE‑2026‑48090 as affecting specific Envoy versions’ HTTP OAuth2 filter, without providing exploitation details, patches, or technical specifics.

    00000611
    57.7K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appenvoyproxyenvoy---

Explore more

Back to dashboardenvoyproxy CVEsenvoy vulnerabilities