CVE-2023-31042: A flaw exists in FlashBlade Purity whereby an authenticated user with access to FlashBlade’s object store prot

Routine

HIGH 7.7UPGRADE

CVE-2023-31042 is a high-severity flaw (CVSS 7.7) affecting purity. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw exists in FlashBlade Purity whereby an authenticated user with access to FlashBlade’s object store protocol can impact the availability of the system’s data access and replication protocols.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.7 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Published	2023-10-02
Last modified	2026-06-17

Publisher (CNA): Pure Storage, Inc. · Vendor: purestorage

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

Am I affected?

Timeline

2023-10-02 23:15 UTCPublished CVE record published
2026-06-17 05:56 UTCUpdated Record last modified

purestorage purity UPGRADE

Affected: <= 3.3.6 · >= 4.0.0 and <= 4.0.4 · >= 4.1.0 and <= 4.1.1

Fixed in: newer than 4.1.1

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy purity || rpm -q purity || purity --version

2. UPGRADE to newer than 4.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade purity

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade purity

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 4.0.0 (Debian / Ubuntu)

apt-cache madison purity sudo apt install purity=<VERSION_BEFORE_4.0.0> sudo apt-mark hold purity

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

dnf --showduplicates list purity sudo dnf downgrade purity-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add purity

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-2023-31042?

purity: upgrade to newer than 4.1.1. Exact commands for each OS are on this page.

Is CVE-2023-31042 being exploited?

CVE-2023-31042 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-2023-31042 affect?

CVE-2023-31042 affects purity. Severity is high (CVSS 7.7). A flaw exists in FlashBlade Purity whereby an authenticated user with access to FlashBlade’s object store protocol can impact the availability of the system’s data access and replication protocols.

How urgent is CVE-2023-31042?

Priority 39/100. High severity

Related CVEs

CVE-2023-36627 HIGH 7.7 UPGRADE A flaw exists in FlashBlade Purity whereby a user with access to an administrative account on a FlashBlade tha
CVE-2023-28372 MEDIUM 6.5 UPGRADE A flaw exists in FlashBlade Purity (OE) Version 4.1.0 whereby a user with privileges to extend an object’s ret
CVE-2017-7352 MEDIUM 5.4 DOWNGRADE Stored Cross-site scripting (XSS) vulnerability in Pure Storage Purity 4.7.5 allows remote authenticated users
CVE-2002-1124 HIGH 7.2 DOWNGRADE Multiple buffer overflows in purity 1-16 allow local users to gain privileges and modify high scores tables.

References

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