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CVE-2022-21126

26
FAUCET Score

CVE-2022-21126 affects the samtools htsjdk package prior to version 3.0.1, stemming from a flaw in the createTempDir() function that fails to verify the existence of a temporary directory before creation, leading to insecure permissions. This vulnerability carries a high CVSS score of 7.8, indicating a local attack vector with low complexity, potentially resulting in high impacts to confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion, suggesting a low immediate threat.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0.1CPE matchmatch criteria
cpe:2.3:a:samtools:htsjdk:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 86th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: com.github.samtools:htsjdkFixed in: 3.0.1

Vendor Advisories (1)

mavenGHSA-96vh-4rfp-c42chigh

HTSJDK is vulnerable to exposure of resource(s) to the wrong sphere

Nov 29, 2022

References

github.com / samtools/htsjdk/commit/4a4024a97ee3e87096df6ad9b22c8260bd527772
PatchThird Party Advisory
github.com / samtools/htsjdk/pull/1617
ExploitPatchThird Party Advisory
security.snyk.io / vuln/SNYK-JAVA-COMGITHUBSAMTOOLS-3149901
Third Party Advisory