How severe is CVE-2026-48995?

CVE-2026-48995 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-48995 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-48995?

CVE-2026-48995 affects Pnpm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-48995?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-48995 have an EU (EUVD) identifier?

Yes. CVE-2026-48995 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39497.

When was CVE-2026-48995 published?

CVE-2026-48995 was published on 2026-06-25 and last updated on 2026-06-29.

CVE-2026-48995

CVE-2026-48995 is a high-severity vulnerability in Pnpm with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-353.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 4.8
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39497
Weakness: CWE-353
Affected product: Pnpm
Published: 2026-06-25
Last modified: 2026-06-29

Description

pnpm is a package manager. Prior to 10.33.4 and 11.0.7, a malicious codeload.github.com server can serve whatever tarball it wants and pnpm will install it regardless of the lockfile. The lockfile does not store the hash of the dependencies from https://codeload.github.com. This means that if this server was compromised or a person's machine configuration was compromised, pnpm would download and install these dependencies. This vulnerability is fixed in 10.33.4 and 11.0.7.

Frequently asked questions

What is CVE-2026-48995?: pnpm is a package manager. Prior to 10.33.4 and 11.0.7, a malicious codeload.github.com server can serve whatever tarball it wants and pnpm will install it regardless of the lockfile. The lockfile does not store the hash of the dependencies from https://codeload.github.com. This means that if this server was compromised or a person's machine configuration was compromised, pnpm would download and install these dependencies. This vulnerability is fixed in 10.33.4 and 11.0.7.
How severe is CVE-2026-48995?: CVE-2026-48995 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-48995 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-48995?: CVE-2026-48995 affects Pnpm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-48995?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-48995 have an EU (EUVD) identifier?: Yes. CVE-2026-48995 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39497.
When was CVE-2026-48995 published?: CVE-2026-48995 was published on 2026-06-25 and last updated on 2026-06-29.

References

https://github.com/pnpm/pnpm/security/advisories/GHSA-hg3w-7f8c-63hp

Affected products (1)

cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:*

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