Haproxy vulnerabilitiesNone on the known-exploited list.
Haproxy has 31 published vulnerabilities across 3 products in our catalogue. None of them is on the list of flaws known to be exploited today. The most affected product is Haproxy, with 30. If you run Haproxy software, patch the exploited flaws first.
We keep watching the known-exploited list.
Which Haproxy products have the most vulnerabilities?
Haproxy leads with 30 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.
Which Haproxy vulnerabilities are being exploited?
This is the list that matters most: flaws criminals are using now.
None of Haproxy's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.
Which Haproxy flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 70%CVE-2019-14241High
HAProxy through 2.0.2 allows attackers to cause a denial of service (ha_panic) via vectors related to htx_manage_client_side_cookies in proto_htx.c.
- 62%CVE-2020-11100High
In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request,...
- 59%CVE-2021-40346High
An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and...
- 43%CVE-2016-5360High
HAproxy 1.6.x before 1.6.6, when a deny comes from a reqdeny rule, allows remote attackers to cause a denial of service (uninitialized memory access and crash) or possibly have unspecified other impact via unknown...
- 17%CVE-2022-0711High
A flaw was found in the way HAProxy processed HTTP responses containing the "Set-Cookie2" header.
- 10%CVE-2019-18277High
A flaw was found in HAProxy before 2.0.6.
- 8.3%CVE-2018-10184High
An issue was discovered in HAProxy before 1.8.8.
- 6.6%CVE-2018-20103High
An issue was discovered in dns.c in HAProxy through 1.8.14.
- 5.6%CVE-2013-1912Medium
Buffer overflow in HAProxy 1.4 through 1.4.22 and 1.5-dev through 1.5-dev17, when HTTP keep-alive is enabled, using HTTP keywords in TCP inspection rules, and running with rewrite rules that appends to requests,...
- 5.4%CVE-2023-25725Critical
HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field...
All Haproxy products we track.
3 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.
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1 new flaw affects software Acme tracks
HAProxy through 2.0.2 allows attackers to cause a denial of service (ha_panic) via vectors related to htx_manage_client_side_cookies in proto_htx.c.
- Matched to
- Haproxy on Acme's software list
- What to do
- Plan in the vendor’s update
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
Our catalogue lists 31 published vulnerabilities across 3 products and 775 versions from Haproxy.
None of Haproxy's vulnerabilities is on the list of flaws known to be exploited today.
Haproxy, with 30 published vulnerabilities. Its own page lists the ones known to be exploited.
Create a Precursor Intelligence account and track the Haproxy products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.