How severe is CVE-2026-8814?

CVE-2026-8814 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 none, integrity none, and availability low.

Is CVE-2026-8814 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-8814?

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

Does CVE-2026-8814 have an EU (EUVD) identifier?

Yes. CVE-2026-8814 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30842.

When was CVE-2026-8814 published?

CVE-2026-8814 was published on 2026-05-19 and last updated on 2026-06-17.

CVE-2026-8814

CVE-2026-8814 is a medium-severity vulnerability 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-409.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 5.5
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30842
Weakness: CWE-409
Published: 2026-05-19
Last modified: 2026-06-17

Description

Versions of the package exifreader before 4.39.0 are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) due to decompressing PNG zTXt metadata without enforcing a built-in maximum decompressed output size. When asynchronous parsing is enabled, a crafted PNG file containing a highly compressed zTXt chunk can cause ExifReader to materialize a disproportionately large Comment value in memory.

Frequently asked questions

What is CVE-2026-8814?: Versions of the package exifreader before 4.39.0 are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) due to decompressing PNG zTXt metadata without enforcing a built-in maximum decompressed output size. When asynchronous parsing is enabled, a crafted PNG file containing a highly compressed zTXt chunk can cause ExifReader to materialize a disproportionately large Comment value in memory.
How severe is CVE-2026-8814?: CVE-2026-8814 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 none, integrity none, and availability low.
Is CVE-2026-8814 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-8814?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8814 have an EU (EUVD) identifier?: Yes. CVE-2026-8814 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30842.
When was CVE-2026-8814 published?: CVE-2026-8814 was published on 2026-05-19 and last updated on 2026-06-17.

References

Other CWE-409 vulnerabilities

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