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    14 vulnerabilities found for rust-openssl by rust-openssl

    CVE-2026-44662 (GCVE-0-2026-44662)

    Vulnerability from nvd – Published: 2026-05-14 20:18 – Updated: 2026-05-16 01:01
    VLAI
    Title
    rust-openssl: Heap buffer overflow when encrypting with AES key-wrap-with-padding
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.0 to before 0.10.79, CipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This only impacts users using AES key-wrap-with-padding ciphers. This vulnerability is fixed in 0.10.79.
    Severity
    5.1 (Medium)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-122 - Heap-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.10.0, < 0.10.79
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-42327 (GCVE-0-2026-42327)

    Vulnerability from nvd – Published: 2026-05-14 20:17 – Updated: 2026-05-15 18:05
    VLAI
    Title
    rust-openssl: undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocsp_responders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref<Target = str> wraps the raw bytes with str::from_utf8_unchecked. OpenSSL does not enforce that the underlying IA5String is ASCII, so a certificate with non-UTF-8 bytes in its OCSP accessLocation causes safe Rust code to construct a &str that violates the UTF-8 invariant — resulting in undefined behavior. This vulnerability is fixed in 0.10.79.
    Severity
    8.7 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-20 - Improper Input Validation
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.9.7, < 0.10.79
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41898 (GCVE-0-2026-41898)

    Vulnerability from nvd – Published: 2026-04-24 17:20 – Updated: 2026-04-24 18:01
    VLAI
    Title
    rust-openssl: Unchecked callback-returned length in PSK and cookie generate trampolines can cause OpenSSL to leak adjacent memory to the network peer
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.
    Severity
    8.3 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-126 - Buffer Over-read
    • CWE-130 - Improper Handling of Length Parameter Inconsistency
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.9.24, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41681 (GCVE-0-2026-41681)

    Vulnerability from nvd – Published: 2026-04-24 17:19 – Updated: 2026-04-24 17:42
    VLAI
    Title
    rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.39 to before 0.10.78, EVP_DigestFinal() always writes EVP_MD_CTX_size(ctx) to the out buffer. If out is smaller than that, MdCtxRef::digest_final() writes past its end, usually corrupting the stack. This is reachable from safe Rust. This vulnerability is fixed in 0.10.78.
    Severity
    8.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.10.39, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41678 (GCVE-0-2026-41678)

    Vulnerability from nvd – Published: 2026-04-24 17:18 – Updated: 2026-04-24 18:33
    VLAI
    Title
    rust-openssl: Incorrect bounds assertion in aes key wrap
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From to before 0.10.78, aes::unwrap_key() contains an incorrect assertion: it checks that out.len() + 8 <= in_.len(), but this condition is reversed. The intended invariant is out.len() >= in_.len() - 8, ensuring the output buffer is large enough. Because of the inverted check, the function only accepts buffers at or below the minimum required size and rejects larger ones. If a smaller buffer is provided the function will write past the end of out by in_.len() - 8 - out.len() bytes, causing an out-of-bounds write from a safe public function. This vulnerability is fixed in 0.10.78.
    Severity
    7.2 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.10.24, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41677 (GCVE-0-2026-41677)

    Vulnerability from nvd – Published: 2026-04-24 17:17 – Updated: 2026-04-24 18:02
    VLAI
    Title
    rust-openssl: Out-of-bounds read in PEM password callback when user callback returns an oversized length
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.0 to before 0.10.78, the *_from_pem_callback APIs did not validate the length returned by the user's callback. A password callback that returns a value larger than the buffer it was given can cause some versions of OpenSSL to over-read this buffer. OpenSSL 3.x is not affected by this. This vulnerability is fixed in 0.10.78.
    Severity
    1.7 (Low)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-125 - Out-of-bounds Read
    • CWE-1284 - Improper Validation of Specified Quantity in Input
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.9.0, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41676 (GCVE-0-2026-41676)

    Vulnerability from nvd – Published: 2026-04-24 17:16 – Updated: 2026-04-24 17:43
    VLAI
    Title
    rust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.27 to before 0.10.78, Deriver::derive (and PkeyCtxRef::derive) sets len = buf.len() and passes it as the in/out length to EVP_PKEY_derive, relying on OpenSSL to honor it. On OpenSSL 1.1.x, X25519, X448, DH and HKDF-extract ignore the incoming *keylen, unconditionally writing the full shared secret (32/56/prime-size bytes). A caller passing a short slice gets a heap/stack overflow from safe code. OpenSSL 3.x providers do check, so this only impacts older OpenSSL. This vulnerability is fixed in 0.10.78.
    Severity
    7.2 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-787 - Out-of-bounds Write
    • CWE-131 - Incorrect Calculation of Buffer Size
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.9.27, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-44662 (GCVE-0-2026-44662)

    Vulnerability from cvelistv5 – Published: 2026-05-14 20:18 – Updated: 2026-05-16 01:01
    VLAI
    Title
    rust-openssl: Heap buffer overflow when encrypting with AES key-wrap-with-padding
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.0 to before 0.10.79, CipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This only impacts users using AES key-wrap-with-padding ciphers. This vulnerability is fixed in 0.10.79.
    Severity
    5.1 (Medium)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-122 - Heap-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.10.0, < 0.10.79
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-42327 (GCVE-0-2026-42327)

    Vulnerability from cvelistv5 – Published: 2026-05-14 20:17 – Updated: 2026-05-15 18:05
    VLAI
    Title
    rust-openssl: undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocsp_responders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref<Target = str> wraps the raw bytes with str::from_utf8_unchecked. OpenSSL does not enforce that the underlying IA5String is ASCII, so a certificate with non-UTF-8 bytes in its OCSP accessLocation causes safe Rust code to construct a &str that violates the UTF-8 invariant — resulting in undefined behavior. This vulnerability is fixed in 0.10.79.
    Severity
    8.7 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-20 - Improper Input Validation
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.9.7, < 0.10.79
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41898 (GCVE-0-2026-41898)

    Vulnerability from cvelistv5 – Published: 2026-04-24 17:20 – Updated: 2026-04-24 18:01
    VLAI
    Title
    rust-openssl: Unchecked callback-returned length in PSK and cookie generate trampolines can cause OpenSSL to leak adjacent memory to the network peer
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.24 to before 0.10.78, the FFI trampolines behind SslContextBuilder::set_psk_client_callback, set_psk_server_callback, set_cookie_generate_cb, and set_stateless_cookie_generate_cb forwarded the user closure's returned usize directly to OpenSSL without checking it against the &mut [u8] that was handed to the closure. This can lead to buffer overflows and other unintended consequences. This vulnerability is fixed in 0.10.78.
    Severity
    8.3 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-126 - Buffer Over-read
    • CWE-130 - Improper Handling of Length Parameter Inconsistency
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.9.24, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41681 (GCVE-0-2026-41681)

    Vulnerability from cvelistv5 – Published: 2026-04-24 17:19 – Updated: 2026-04-24 17:42
    VLAI
    Title
    rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.39 to before 0.10.78, EVP_DigestFinal() always writes EVP_MD_CTX_size(ctx) to the out buffer. If out is smaller than that, MdCtxRef::digest_final() writes past its end, usually corrupting the stack. This is reachable from safe Rust. This vulnerability is fixed in 0.10.78.
    Severity
    8.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.10.39, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41678 (GCVE-0-2026-41678)

    Vulnerability from cvelistv5 – Published: 2026-04-24 17:18 – Updated: 2026-04-24 18:33
    VLAI
    Title
    rust-openssl: Incorrect bounds assertion in aes key wrap
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From to before 0.10.78, aes::unwrap_key() contains an incorrect assertion: it checks that out.len() + 8 <= in_.len(), but this condition is reversed. The intended invariant is out.len() >= in_.len() - 8, ensuring the output buffer is large enough. Because of the inverted check, the function only accepts buffers at or below the minimum required size and rejects larger ones. If a smaller buffer is provided the function will write past the end of out by in_.len() - 8 - out.len() bytes, causing an out-of-bounds write from a safe public function. This vulnerability is fixed in 0.10.78.
    Severity
    7.2 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.10.24, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41677 (GCVE-0-2026-41677)

    Vulnerability from cvelistv5 – Published: 2026-04-24 17:17 – Updated: 2026-04-24 18:02
    VLAI
    Title
    rust-openssl: Out-of-bounds read in PEM password callback when user callback returns an oversized length
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.0 to before 0.10.78, the *_from_pem_callback APIs did not validate the length returned by the user's callback. A password callback that returns a value larger than the buffer it was given can cause some versions of OpenSSL to over-read this buffer. OpenSSL 3.x is not affected by this. This vulnerability is fixed in 0.10.78.
    Severity
    1.7 (Low)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-125 - Out-of-bounds Read
    • CWE-1284 - Improper Validation of Specified Quantity in Input
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.9.0, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-41676 (GCVE-0-2026-41676)

    Vulnerability from cvelistv5 – Published: 2026-04-24 17:16 – Updated: 2026-04-24 17:43
    VLAI
    Title
    rust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1
    Summary
    rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.27 to before 0.10.78, Deriver::derive (and PkeyCtxRef::derive) sets len = buf.len() and passes it as the in/out length to EVP_PKEY_derive, relying on OpenSSL to honor it. On OpenSSL 1.1.x, X25519, X448, DH and HKDF-extract ignore the incoming *keylen, unconditionally writing the full shared secret (32/56/prime-size bytes). A caller passing a short slice gets a heap/stack overflow from safe code. OpenSSL 3.x providers do check, so this only impacts older OpenSSL. This vulnerability is fixed in 0.10.78.
    Severity
    7.2 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-787 - Out-of-bounds Write
    • CWE-131 - Incorrect Calculation of Buffer Size
    Assigner
    References
    Impacted products
    Vendor Product Version
    rust-openssl rust-openssl Affected: >= 0.9.27, < 0.10.78
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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