CVE-2026-35435: Improper access control in Azure AI Foundry M365 published agents allows an unauthorized attacker to elevate p

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HIGH 8.6REMOTEWATCHLISTMITIGATE

CVE-2026-35435 is a high-severity flaw (CVSS 8.6) affecting azure ai foundry. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper access control in Azure AI Foundry M365 published agents allows an unauthorized attacker to elevate privileges over a network.

Why this priority

High severity
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-05-07
Last modified	2026-10-26

Publisher (CNA): Microsoft Corporation · Vendor: microsoft

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-07 22:16 UTCPublished CVE record published
2026-10-26 20:10 UTCUpdated Record last modified

microsoft azure ai foundry MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy azure-ai-foundry || rpm -q azure-ai-foundry || azure-ai-foundry --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · ddnet · FIXED · 20.2-1.fc46 · FEDORA-2026-6991b4ab14 · source

sudo dnf upgrade --advisory=FEDORA-2026-6991b4ab14

Fedora ELN · libplacebo · FIXED · 7.360.1-5.eln159 · FEDORA-2026-92226f221e · source

sudo dnf upgrade --advisory=FEDORA-2026-92226f221e

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35435?

azure ai foundry: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-35435 being exploited?

CVE-2026-35435 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35435 affect?

CVE-2026-35435 affects azure ai foundry. Severity is high (CVSS 8.6). Improper access control in Azure AI Foundry M365 published agents allows an unauthorized attacker to elevate privileges over a network.

How urgent is CVE-2026-35435?

Priority 60/100. High severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Azure vulnerabilities

References

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