How severe is CVE-2026-48596?

CVE-2026-48596 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-48596 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-48596?

CVE-2026-48596 affects Elixir-tesla Tesla. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-48596?

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

Does CVE-2026-48596 have an EU (EUVD) identifier?

Yes. CVE-2026-48596 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34016.

When was CVE-2026-48596 published?

CVE-2026-48596 was published on 2026-06-02 and last updated on 2026-08-19.

CVE-2026-48596

CVE-2026-48596 is a low-severity vulnerability in Elixir-tesla Tesla with a CVSS 3.x base score of 3.7. 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-113.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v4: 2.1
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34016
Weakness: CWE-113
Affected product: Elixir-tesla Tesla
Published: 2026-06-02
Last modified: 2026-08-19

Description

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') vulnerability in elixir-tesla tesla allows HTTP header injection via Tesla.Multipart.add_content_type_param/2. Tesla.Multipart.add_content_type_param/2 appends caller-supplied strings to the multipart content_type_params list without validating for CR (\r) or LF (\n) characters. Tesla.Multipart.headers/1 then joins these params verbatim with "; " to construct the outgoing Content-Type header value. A param containing \r\n splits the header line, allowing arbitrary headers to be injected into the outbound HTTP request. Any application that forwards untrusted input (such as a user-supplied charset or parameter string) into add_content_type_param/2 is affected. This issue affects tesla: from 0.8.0 before 1.18.3.

Frequently asked questions

What is CVE-2026-48596?: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') vulnerability in elixir-tesla tesla allows HTTP header injection via Tesla.Multipart.add_content_type_param/2. Tesla.Multipart.add_content_type_param/2 appends caller-supplied strings to the multipart content_type_params list without validating for CR (\r) or LF (\n) characters. Tesla.Multipart.headers/1 then joins these params verbatim with "; " to construct the outgoing Content-Type header value. A param containing \r\n splits the header line, allowing arbitrary headers to be injected into the outbound HTTP request. Any application that forwards untrusted input (such as a user-supplied charset or parameter string) into add_content_type_param/2 is affected. This issue affects tesla: from 0.8.0 before 1.18.3.
How severe is CVE-2026-48596?: CVE-2026-48596 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-48596 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-48596?: CVE-2026-48596 affects Elixir-tesla Tesla. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-48596?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-48596 have an EU (EUVD) identifier?: Yes. CVE-2026-48596 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34016.
When was CVE-2026-48596 published?: CVE-2026-48596 was published on 2026-06-02 and last updated on 2026-08-19.

References

Affected products (1)

cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*

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