CVE Explorer
CVE-2026-55555
Dompdf is an HTML to PDF converter for PHP. Versions 3.15 and prior are vulnerable to a File Existence Oracle attack through the manipulation of the CSS @font-face directive. By providing malicious HTML that references local files via the file:// protocol repeatedly, an attacker can trigger PHP memory exhaustion. Because Dompdf behaves differently depending on whether a referenced local file exists (an existing file is processed repeatedly until it triggers an "Allowed memory size exhausted" cra
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"dompdf","vendor":"dompdf","versions":[{"status":"affected","version":"< 3.1.6"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:f93afad4abf9c695f5de3ba2d938123a20f2de8f5eb7553d0f76343d66d574e7 · sha256:9bc0e16752b3413c… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2.3,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:f93afad4abf9c695f5de3ba2d938123a20f2de8f5eb7553d0f76343d66d574e7 · sha256:9bc0e16752b3413c… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-203","description":"CWE-203: Observable Discrepancy","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:f93afad4abf9c695f5de3ba2d938123a20f2de8f5eb7553d0f76343d66d574e7 · sha256:9bc0e16752b3413c… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/dompdf/dompdf/commit/75c39a083bf7298044fb27399b4cc183054438b4","tags":["x_refsource_MISC"],"url":"https://github.com/dompdf/dompdf/commit/75c39a083bf7298044fb27399b4cc183054438b4"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f93afad4abf9c695f5de3ba2d938123a20f2de8f5eb7553d0f76343d66d574e7 · sha256:9bc0e16752b3413c… · /containers/cna/references/1
{"name":"https://github.com/dompdf/dompdf/releases/tag/v3.1.6","tags":["x_refsource_MISC"],"url":"https://github.com/dompdf/dompdf/releases/tag/v3.1.6"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f93afad4abf9c695f5de3ba2d938123a20f2de8f5eb7553d0f76343d66d574e7 · sha256:9bc0e16752b3413c… · /containers/cna/references/2
{"name":"https://github.com/dompdf/dompdf/security/advisories/GHSA-7x2p-4jvh-6384","tags":["x_refsource_CONFIRM"],"url":"https://github.com/dompdf/dompdf/security/advisories/GHSA-7x2p-4jvh-6384"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f93afad4abf9c695f5de3ba2d938123a20f2de8f5eb7553d0f76343d66d574e7 · sha256:9bc0e16752b3413c… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/dompdf/dompdf/security/advisories/GHSA-7x2p-4jvh-6384"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f93afad4abf9c695f5de3ba2d938123a20f2de8f5eb7553d0f76343d66d574e7 · sha256:9bc0e16752b3413c… · /containers/adp/0/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.