IBM Tivoli Key Lifecycle Manager 3.0, 3.0.1, 4.0, and 4.1 does not set the secure attribute on authorization tokens or session cookies.

published 2021-11-15 4y ago modified 2026-06-17 4mo ago also EUVD-2021-25414

cvss: 3.1; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits: 0; none known

IBM Tivoli Key Lifecycle Manager 3.0, 3.0.1, 4.0, and 4.1 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the insecure link and the attacker can then obtain the cookie value by snooping the traffic. IBM X-Force ID: 212782.

Patch / fix

links 1

ibm.com/support/pages/node/6516052 advisory

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Exploit prediction

0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	3.1	CVSS:3.0/AV:N/C:L/UI:R/AC:H/PR:N/S:U/I:N/A:N/RC:C/RL:O/E:U
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CNA	3.0	3.1	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

IBM Security Key Lifecycle Manager

Classification

Weakness

CWE-311 Missing Encryption of Sensitive Data

References

ibm.com /support/pages/node/6516052
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/212782
vdb-entry, vendor-advisory

Sources

CVE List CVE-2021-38977
NVD CVE-2021-38977

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