How severe is CVE-2026-5318?

CVE-2026-5318 has a CVSS 3.x base score of 4.3, 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 low.

Is CVE-2026-5318 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5318?

CVE-2026-5318 affects Libraw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5318?

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

Does CVE-2026-5318 have an EU (EUVD) identifier?

Yes. CVE-2026-5318 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18116.

When was CVE-2026-5318 published?

CVE-2026-5318 was published on 2026-04-02 and last updated on 2026-06-17.

CVE-2026-5318

CVE-2026-5318 is a medium-severity vulnerability in Libraw with a CVSS 3.x base score of 4.3. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 5.0
CVSS v4: 2.1
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18116
Weakness: CWE-119
Affected product: Libraw
Published: 2026-04-02
Last modified: 2026-06-17

Description

A weakness has been identified in LibRaw up to 0.22.0. This impacts the function HuffTable::initval of the file src/decompressors/losslessjpeg.cpp of the component JPEG DHT Parser. This manipulation of the argument bits[] causes out-of-bounds write. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.22.1 will fix this issue. Patch name: a6734e867b19d75367c05f872ac26322464e3995. It is advisable to upgrade the affected component.

Frequently asked questions

What is CVE-2026-5318?: A weakness has been identified in LibRaw up to 0.22.0. This impacts the function HuffTable::initval of the file src/decompressors/losslessjpeg.cpp of the component JPEG DHT Parser. This manipulation of the argument bits[] causes out-of-bounds write. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.22.1 will fix this issue. Patch name: a6734e867b19d75367c05f872ac26322464e3995. It is advisable to upgrade the affected component.
How severe is CVE-2026-5318?: CVE-2026-5318 has a CVSS 3.x base score of 4.3, 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 low.
Is CVE-2026-5318 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5318?: CVE-2026-5318 affects Libraw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5318?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5318 have an EU (EUVD) identifier?: Yes. CVE-2026-5318 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18116.
When was CVE-2026-5318 published?: CVE-2026-5318 was published on 2026-04-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libraw:libraw:*:*:*:*:*:*:*:*

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