How severe is CVE-2026-42042?

CVE-2026-42042 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-42042 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42042?

CVE-2026-42042 affects Axios. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42042?

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

Does CVE-2026-42042 have an EU (EUVD) identifier?

Yes. CVE-2026-42042 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25607.

When was CVE-2026-42042 published?

CVE-2026-42042 was published on 2026-04-24 and last updated on 2026-06-17.

CVE-2026-42042

CVE-2026-42042 is a medium-severity vulnerability in Axios with a CVSS 3.x base score of 5.4. 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-183.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25607
Weakness: CWE-183
Affected product: Axios
Published: 2026-04-24
Last modified: 2026-06-17

Description

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, the Axios library's XSRF token protection logic uses JavaScript truthy/falsy semantics instead of strict boolean comparison for the withXSRFToken config property. When this property is set to any truthy non-boolean value (via prototype pollution or misconfiguration), the same-origin check (isURLSameOrigin) is short-circuited, causing XSRF tokens to be sent to all request targets including cross-origin servers controlled by an attacker. This vulnerability is fixed in 1.15.1 and 0.31.1.

Frequently asked questions

What is CVE-2026-42042?: Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, the Axios library's XSRF token protection logic uses JavaScript truthy/falsy semantics instead of strict boolean comparison for the withXSRFToken config property. When this property is set to any truthy non-boolean value (via prototype pollution or misconfiguration), the same-origin check (isURLSameOrigin) is short-circuited, causing XSRF tokens to be sent to all request targets including cross-origin servers controlled by an attacker. This vulnerability is fixed in 1.15.1 and 0.31.1.
How severe is CVE-2026-42042?: CVE-2026-42042 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-42042 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42042?: CVE-2026-42042 affects Axios. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42042?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-42042 have an EU (EUVD) identifier?: Yes. CVE-2026-42042 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25607.
When was CVE-2026-42042 published?: CVE-2026-42042 was published on 2026-04-24 and last updated on 2026-06-17.

References

https://github.com/axios/axios/security/advisories/GHSA-xx6v-rp6x-q39c

Affected products (1)

cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:*

More vulnerabilities in Axios

CVE-2025-62718 — Critical (CVSS 9.9): Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.0 and 0.31.0, Axios does not correctly…
CVE-2026-44494 — High (CVSS 8.7): Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.16.0, the Axios library is…
CVE-2026-44492 — High (CVSS 8.6): Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios does not normalise…
CVE-2026-44496 — High (CVSS 7.5): Axios is a promise based HTTP client for the browser and Node.js. Axios versions before 0.32.0 on the 0.x line and…
CVE-2026-44488 — High (CVSS 7.5): Axios is a promise based HTTP client for the browser and Node.js. Axios versions 1.7.0 through 1.15.x did not enforce…
CVE-2026-44487 — High (CVSS 7.5): Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios’s Node.js HTTP…

All CVEs affecting Axios →

Other CWE-183 vulnerabilities

CVE-2026-3490 — Critical (CVSS 10.0): picklescan before 1.0.4 fails to block pkgutil.resolve_name, allowing attackers to bypass the entire blocklist by…
CVE-2026-54316 — Critical (CVSS 9.1): Claude Code is an agentic coding tool. From 0.2.54 until 2.1.163, because the hostname huggingface.co was pre-approved…
CVE-2026-29514 — High (CVSS 8.8): NetBox versions 4.3.5 through 4.5.4 contain a remote code execution vulnerability in the…
CVE-2026-46391 — High (CVSS 8.7): HAX CMS helps manage microsite universe with PHP or NodeJs backends. Starting in version 9.0.1 and prior to version…
CVE-2025-53762 — High (CVSS 8.7): Permissive list of allowed inputs in Microsoft Purview allows an authorized attacker to elevate privileges over a…
CVE-2026-41387 — High (CVSS 7.8): OpenClaw before 2026.3.22 contains an incomplete host environment variable sanitization vulnerability in…

Browse all CWE-183 vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

157.66.35.106 (ipv4-addr)