CVE-2026-8636: IBM Datacap 9.1.7, 9.1.8, and 9.1.9 and IBM Datacap Navigator 9.1.7, 9.1.8, and 9.1.9 allows an attacker to re

Routine

MEDIUM 5.5DOWNGRADEDOWNGRADE

CVE-2026-8636 is a medium-severity flaw (CVSS 5.5) affecting datacap, datacap navigator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Datacap 9.1.7, 9.1.8, and 9.1.9 and IBM Datacap Navigator 9.1.7, 9.1.8, and 9.1.9 allows an attacker to retrieve user passwords and cryptographic keys from memory. Attacker can use the same keys to decrypt password, gain access to the application and access sensitive data in the database.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-316
Published	2026-06-22
Last modified	2026-06-26

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-06-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-22 16:16 UTCPublished CVE record published
2026-06-26 21:20 UTCUpdated Record last modified

ibm datacap DOWNGRADE

Affected: 9.1.7 · 9.1.8 · 9.1.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.1.7

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 9.1.7 (Debian / Ubuntu)

apt-cache madison datacap sudo apt install datacap=<VERSION_BEFORE_9.1.7> sudo apt-mark hold datacap

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

dnf --showduplicates list datacap sudo dnf downgrade datacap-<VERSION_BEFORE_9.1.7> sudo dnf versionlock add datacap

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.

ibm datacap navigator DOWNGRADE

Affected: 9.1.7 · 9.1.8 · 9.1.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.1.7

1. Check installed version

apt-cache policy datacap-navigator || rpm -q datacap-navigator || datacap-navigator --version

2. No fixed release: DOWNGRADE to a release before 9.1.7 (Debian / Ubuntu)

apt-cache madison datacap-navigator sudo apt install datacap-navigator=<VERSION_BEFORE_9.1.7> sudo apt-mark hold datacap-navigator

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

dnf --showduplicates list datacap-navigator sudo dnf downgrade datacap-navigator-<VERSION_BEFORE_9.1.7> sudo dnf versionlock add datacap-navigator

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-2026-8636?

datacap: downgrade or apply the listed mitigation; datacap navigator: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-8636 being exploited?

CVE-2026-8636 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-2026-8636 affect?

CVE-2026-8636 affects datacap, datacap navigator. Severity is medium (CVSS 5.5). IBM Datacap 9.1.7, 9.1.8, and 9.1.9 and IBM Datacap Navigator 9.1.7, 9.1.8, and 9.1.9 allows an attacker to retrieve user passwords and cryptographic keys from memory. Attacker can use the same keys to decrypt password, gain access to the a

How urgent is CVE-2026-8636?

Priority 22/100. No elevated risk signals yet.

Related CVEs

CVE-2026-8059 MEDIUM 6.1 DOWNGRADE DOWNGRADE IBM Datacap 9.1.7, 9.1.8, and 9.1.9 and IBM Datacap Navigator 9.1.7, 9.1.8, and 9.1.9 is vulnerable to cross-s
CVE-2026-9610 LOW 2.3 DOWNGRADE DOWNGRADE IBM Datacap 9.1.7, 9.1.8, and 9.1.9 and IBM Datacap Navigator 9.1.7, 9.1.8, and 9.1.9 exposes resources or fun

References

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