How severe is CVE-2026-7009?

CVE-2026-7009 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-7009 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7009?

CVE-2026-7009 affects Haxx Curl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7009?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-7009 have an EU (EUVD) identifier?

Yes. CVE-2026-7009 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29931.

When was CVE-2026-7009 published?

CVE-2026-7009 was published on 2026-05-13 and last updated on 2026-06-17.

CVE-2026-7009

CVE-2026-7009 is a medium-severity vulnerability in Haxx Curl with a CVSS 3.x base score of 5.3. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29931
Weakness: CWE-295
Affected product: Haxx Curl
Published: 2026-05-13
Last modified: 2026-06-17

Description

When curl is told to use the Certificate Status Request TLS extension, often referred to as *OCSP stapling*, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine.

Frequently asked questions

What is CVE-2026-7009?: When curl is told to use the Certificate Status Request TLS extension, often referred to as *OCSP stapling*, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine.
How severe is CVE-2026-7009?: CVE-2026-7009 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-7009 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7009?: CVE-2026-7009 affects Haxx Curl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7009?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-7009 have an EU (EUVD) identifier?: Yes. CVE-2026-7009 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29931.
When was CVE-2026-7009 published?: CVE-2026-7009 was published on 2026-05-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*

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