CVE-2026-33697: Cocos AI is a confidential computing system for AI

Routine

HIGH 7.5UPGRADE

CVE-2026-33697 is a high-severity flaw (CVSS 7.5) affecting cocos ai. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cocos AI is a confidential computing system for AI. The current implementation of attested TLS (aTLS) in CoCoS is vulnerable to a relay attack affecting all versions from v0.4.0 through v0.8.2. This vulnerability is present in both the AMD SEV-SNP and Intel TDX deployment targets supported by CoCoS. In the affected design, an attacker may be able to extract the ephemeral TLS private key used during the intra-handshake attestation. Because the att

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 100%)
CISA exploited list	No
Weakness	CWE-322, CWE-346
Published	2026-03-27
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: ultraviolet

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-27 00:16 UTCPublished CVE record published
2026-06-17 10:37 UTCUpdated Record last modified

ultraviolet cocos ai UPGRADE

Affected: >= 0.4.0 and < 0.9.0

Fixed in: 0.9.0

Safe to downgrade to: a release before 0.4.0

1. Check installed version

apt-cache policy cocos-ai || rpm -q cocos-ai || cocos-ai --version

2. UPGRADE to 0.9.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cocos-ai

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cocos-ai

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.4.0 (Debian / Ubuntu)

apt-cache madison cocos-ai sudo apt install cocos-ai=<VERSION_BEFORE_0.4.0> sudo apt-mark hold cocos-ai

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list cocos-ai sudo dnf downgrade cocos-ai-<VERSION_BEFORE_0.4.0> sudo dnf versionlock add cocos-ai

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-33697?

cocos ai: upgrade to 0.9.0. Exact commands for each OS are on this page.

Is CVE-2026-33697 being exploited?

CVE-2026-33697 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-2026-33697 affect?

CVE-2026-33697 affects cocos ai. Severity is high (CVSS 7.5). Cocos AI is a confidential computing system for AI. The current implementation of attested TLS (aTLS) in CoCoS is vulnerable to a relay attack affecting all versions from v0.4.0 through v0.8.2. This vulnerability is present in both the AMD

How urgent is CVE-2026-33697?

Priority 26/100. High severity

Software pages

Intel vulnerabilities · AMD vulnerabilities

References

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