CVE-2023-26289: IBM Aspera Orchestrator 4.0.1 is vulnerable to HTTP header injection, caused by improper validation of input b

Routine

MEDIUM 5.4DOWNGRADE

CVE-2023-26289 is a medium-severity flaw (CVSS 5.4) affecting aspera orchestrator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Aspera Orchestrator 4.0.1 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 248478.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-644, CWE-116
Published	2024-07-30
Last modified	2026-06-17

Publisher (CNA): IBM Corporation · Vendor: ibm

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

Am I affected?

Timeline

2024-07-30 17:15 UTCPublished CVE record published
2026-06-17 05:42 UTCUpdated Record last modified

ibm aspera orchestrator DOWNGRADE

Affected: 4.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0.1

1. Check installed version

apt-cache policy aspera-orchestrator || rpm -q aspera-orchestrator || aspera-orchestrator --version

2. No fixed release: DOWNGRADE to a release before 4.0.1 (Debian / Ubuntu)

apt-cache madison aspera-orchestrator sudo apt install aspera-orchestrator=<VERSION_BEFORE_4.0.1> sudo apt-mark hold aspera-orchestrator

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list aspera-orchestrator sudo dnf downgrade aspera-orchestrator-<VERSION_BEFORE_4.0.1> sudo dnf versionlock add aspera-orchestrator

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-2023-26289?

aspera orchestrator: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-26289 being exploited?

CVE-2023-26289 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-2023-26289 affect?

CVE-2023-26289 affects aspera orchestrator. Severity is medium (CVSS 5.4). IBM Aspera Orchestrator 4.0.1 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site s

How urgent is CVE-2023-26289?

Priority 23/100. No elevated risk signals yet.

Related CVEs

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References

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