How severe is CVE-2023-22898?

CVE-2023-22898 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-22898 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22898?

CVE-2023-22898 affects Circl Pandora. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-22898?

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

When was CVE-2023-22898 published?

CVE-2023-22898 was published on 2023-01-10 and last updated on 2026-06-17.

CVE-2023-22898

CVE-2023-22898 is a medium-severity vulnerability in Circl Pandora with a CVSS 3.x base score of 6.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Circl Pandora
Published: 2023-01-10
Last modified: 2026-06-17

Description

workers/extractor.py in Pandora (aka pandora-analysis/pandora) 1.3.0 allows a denial of service when an attacker submits a deeply nested ZIP archive (aka ZIP bomb).

Frequently asked questions

What is CVE-2023-22898?: workers/extractor.py in Pandora (aka pandora-analysis/pandora) 1.3.0 allows a denial of service when an attacker submits a deeply nested ZIP archive (aka ZIP bomb).
How severe is CVE-2023-22898?: CVE-2023-22898 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-22898 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22898?: CVE-2023-22898 affects Circl Pandora. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-22898?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-22898 published?: CVE-2023-22898 was published on 2023-01-10 and last updated on 2026-06-17.

References

https://github.com/pandora-analysis/pandora/commit/1dc06327fdc07c56eae653e497dd137ec70d8265

Affected products (1)

cpe:2.3:a:circl:pandora:*:*:*:*:*:*:*:*

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