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VulnerabilityPublished Updated

CVE-2026-7876: IBM Aspera HSTS for CP4I · Improper Authentication

Affects IBM Aspera HSTS for CP4ISource CVE Database V5

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Not known to be exploited · CVSS 9.1 Critical.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
IBMAspera HSTS for CP4IAffected
  • >=1.5.1 <=1.5.19
Fixed in–

CPE configurations (2)

  • cpe:2.3:a:ibm:aspera_hsts_for_cp4i:1.5.1:*:*:*:*:*:*:*
  • cpe:2.3:a:ibm:aspera_hsts_for_cp4i:1.5.19:*:*:*:*:*:*:*

AI-suggested

Until an official fix is available, ensure that all recommended restriction settings are properly configured to limit access controls on the server. Monitor IBM's advisories for updates on patches or official mitigations.

Description

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.

References

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