CVE-2026-58291Disclosure(microsoft / edge_chromium)

LOWCVSS 6.1 · 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

Operation on a resource after expiration or release in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

microsoft CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58291

Weakness type (CWE)

CWE-672

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.

edge_chromium

Threat summary

2 mentions across 1 observed day

What's happening

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

Affected systems

Vendors

microsoft

Products

edge_chromium

Deep dive

Activity timeline2 mentions / 1d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

Infoflowcloud@infoflowcloud91d
Disclosure
🚨*CVE* CVE-2026-58291 Operation on a resource after expiration or release in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network. https://www.cve.org/CVERecord?id=CVE-2026-58291 ----- Traducción: CVE-2026-58291 Operación en … http://infoflow.cloud`
Post summary
The message announces CVE-2026-58291, describing a data disclosure flaw in Microsoft Edge (Chromium‑based) without providing a PoC, exploit, or patch information.
0000040
91 followersView on X
CVE@CVEnew91d
Disclosure
CVE-2026-58291 Operation on a resource after expiration or release in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network. https://www.cve.org/CVERecord?id=CVE-2026-58291
Post summary
CVE-2026-58291 is an information disclosure vulnerability in Microsoft Edge (Chromium-based) that can be triggered by accessing a resource after expiration or release, potentially leaking data over the network.
00000639
57.7K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	microsoft	edge_chromium	-	-	-

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