CVE-2026-7876: IBM Aspera HSTS for CP4I 1.5.1 through 1.5.19 is affected by an authentication bypass vulnerability

This month

CRITICAL 9.1REMOTEUPGRADE

CVE-2026-7876 is a critical-severity flaw (CVSS 9.1) affecting aspera high-speed transfer server for cloud pak for integration. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Aspera HSTS for CP4I 1.5.1 through 1.5.19 is affected by an authentication bypass vulnerability. A transfer client may be able to take advantage of this vulnerability to access files in the server's local storage that they should not have access to, when specific restriction settings are not in place.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-287
Published	2026-05-27
Last modified	2026-10-14

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-27 14:17 UTCPublished CVE record published
2026-10-14 20:10 UTCUpdated Record last modified

ibm aspera high-speed transfer server for cloud pak for integration UPGRADE

Affected: >= 1.5.1 and < 1.5.20

Fixed in: 1.5.20

Safe to downgrade to: a release before 1.5.1

1. Check installed version

apt-cache policy aspera-high-speed-transfer-server-for-cloud-pak-for-integration || rpm -q aspera-high-speed-transfer-server-for-cloud-pak-for-integration || aspera-high-speed-transfer-server-for-cloud-pak-for-integration --version

2. UPGRADE to 1.5.20 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade aspera-high-speed-transfer-server-for-cloud-pak-for-integration

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade aspera-high-speed-transfer-server-for-cloud-pak-for-integration

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 1.5.1 (Debian / Ubuntu)

apt-cache madison aspera-high-speed-transfer-server-for-cloud-pak-for-integration sudo apt install aspera-high-speed-transfer-server-for-cloud-pak-for-integration=<VERSION_BEFORE_1.5.1> sudo apt-mark hold aspera-high-speed-transfer-server-for-cloud-pak-for-integration

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

dnf --showduplicates list aspera-high-speed-transfer-server-for-cloud-pak-for-integration sudo dnf downgrade aspera-high-speed-transfer-server-for-cloud-pak-for-integration-<VERSION_BEFORE_1.5.1> sudo dnf versionlock add aspera-high-speed-transfer-server-for-cloud-pak-for-integration

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-2026-7876?

aspera high-speed transfer server for cloud pak for integration: upgrade to 1.5.20. Exact commands for each OS are on this page.

Is CVE-2026-7876 being exploited?

CVE-2026-7876 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-2026-7876 affect?

CVE-2026-7876 affects aspera high-speed transfer server for cloud pak for integration. Severity is critical (CVSS 9.1). IBM Aspera HSTS for CP4I 1.5.1 through 1.5.19 is affected by an authentication bypass vulnerability. A transfer client may be able to take advantage of this vulnerability to access files in the server's local storage that they should not ha

How urgent is CVE-2026-7876?

Priority 43/100. Critical severity; Remotely exploitable, no login, no user action

References

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